Papers in JRC journals
61
Long-term effects of blue-blocking spectacle lenses on color perception, Optics Express, in press (2022), M. Santandreu, E. M. Valero, L. Gómez-Robledo, R. Huertas, M.A. Martínez-Domingo, J. Hernández-Andrés 
60
Color vision deficiencies and camouflage: a comparative study between normal and CVD observers, Optics Express, vol. 30, N. 8, pp. 13699-13713 (2022), M.A. Martínez-Domingo, A. Galdón, L. Gómez-Robledo, R. Huertas, J. Hernández-Andrés, E.M. Valero,
59
Band selection for dehazing algorithms applied to hyperspectral images in the visible range, Sensors, vol. 21, 5935 (2021), S. Fernández-Calvero, M.A. Martínez-Domingo, E.M. Valero, J. Romero, J.L. Nieves, J. Hernández-Andrés,
58
Is it really possible to compensate for color blindness with a filter?, Coloration Technology, vol. 137, pp. 64-67 (2021), E.M. Valero, M.A. Martínez-Domingo, L. Gómez-Robledo, R. Huertas, J. Hernández-Andrés, J.L. Nieves, and J. Romero
57
Single image dehazing algorithm analysis with hyperspectral images in the visible range, Sensors, vol. 20, pp. 6690 (2020), M.A. Martínez-Domingo, E.M. Valero, J.L. Nieves, P.J. Molina-Fuentes, J. Romero and J. Hernández-Andrés
56
Comment on “Metasurface-based contact lenses for color visión deficiency”, Optics Letters, vol. 45, pp. 5117-5118 (2020), R. Huertas, M.A. Martínez-Domingo, E.M. Valero, L. Gómez-Robledo and J. Hernández-Andrés
55
Spectral filter selection for increasing chromatic diversity in CVD subjects, Sensors, vol. 20, 2023-2038 (2020), M.A. Martínez-Domingo, E.M. Valero, L. Gomez-Robledo, R. Huertas, J. Hernández-Andrés
54
Short-term effects of text-background color combinations on the dynamics of the accommodative response, Vision Research, vol 166, pp. 33-42 (2020), R. Jiménez, B. Redondo, R. Molina, M. A. Martínez-Domingo, J. Hernández-Andrés, J. Vera,
53
Assessment of VINO filters for correcting red-green Color Vision Deficiency, Optics Express, vol 27, N. 13, pp. 17954-17967 (2019), M.A. Martínez-Domingo, L. Gómez-Robledo, E.M. Valero, R. Huertas, J. Hernández-Andrés, S. Ezpeleta and E. Hita
52
Do EnChroma glasses improve color vision for colorblind subjects?, Optics Express, vol 26, N. 22, pp. 28682-28692 (2018), L. Gómez-Robledo, E.M. Valero, M.A. Martínez-Domingo, R. Huertas and J. Hernández-Andrés
51
Image Processing Pipeline for Segmentation and Material Classification based on Multispectral High Dynamic Range Polarimetric Images, Optics Express, vol 25, N. 24, pp. 30073-30090 (2017), M.A. Martínez-Domingo, E.M. Valero, J. Hernández-Andrés, S. Tominaga, T. Horiuchi and K. Hirai
50
Subpixel Accurate Calibration of Line-Scan Multi-Spectral Images Using a Polynomial or B-Spline based Registration Model, Journal of Imaging Science and Technology, vol 61, N. 3, pp. 30503-1-30503-11 (2017) , T. Eckhard, J. Eckhard, E.M. Valero, J. Hernández-Andrés
49
The Design of a Low-cost Radiometric System for Photovoltaic Solar Cells, IEEE Journal of Photovoltaics, vol. 6, N. 6, pp. 1605-1610 (2016), M.A. López-Álvarez, S. Collins, J. Hernández-Andrés
48
Colorimetric Analysis of Outdoor Illumination across Varieties of Atmospheric Conditions, Journal of the Optical Society of America A, vol. 33, N. 6 (2016), pp. 1049-1059, S. Peyvandi, J. Hernández-Andrés, F.J. Olmo, J.L. Nieves, J. Romero
47
Adaptive exposure estimation for high dynamic range imaging applied to natural scenes and daylight skies, Applied Optics, vol. 54, N. 4, pp. B241-B250 (2015), M.A. Martínez-Domingo, E.M. Valero, J. Hernández-Andrés
46
Combining Transverse Field Detectors and Color Filter Arrays to improve multispectral imaging systems, Applied Optics, vol. 53, N. 13, pp. C14-C24 (2014), M.A. Martínez-Domingo, E.M. Valero, J. Hernández-Andrés, J. Romero and G. Langfelder
45
Adaptive global training set selection for spectral estimation of printed inks using reflectance modeling, Applied Optics, vol. 53, N. 4, pp. 709-719 (2014), T. Eckhard, E.M. Valero, J. Hernández-Andrés, M. Schnitzlein
44
Evaluating a logarithmic kernel for spectral reflectance estimation - effects on model parametrization, training set size and number of sensor spectral channels, Journal of the Optical Society of America A, vol. 31, N.3, pp. 541-549 (2014), T. Eckhard, E.M. Valero, J. Hernández-Andrés, V. Heikkinen
43
Comparative performance analysis of spectral estimation algorithms and computational optimization of a multispectral imaging system for print inspection, Color Research and Application, vol 39, pp. 16-27 (2014), E.M. Valero, Y. Hu, J. Hernández-Andrés, T. Eckhard, J.L Nieves, J.Romero, M. Schnitzlein, D. Nowack
42
Analysis of Colour Constancy algorithms using the Knowledge of Variation of Correlated Colour Temperature of Daylight with Solar Elevation, EURASIP Journal on Image and Video Processing, 2013, 2013:14, S. Ratnasingam, S. Collins, and J. Hernández-Andrés
41
Generalized inverse-approach model for spectral-signal recovery, IEEE-TIP Transactions on Image Processing Journal, vol. 22, pp. 501-510 (2013), S. Peyvandi, S.H. Amirshahi, J. Hernández-Andrés, J.L Nieves, J.Romero
40
Spectral Recovery of Outdoor Illumination by an Extension of the Bayesian Inverse Approach to the Gaussian Mixture Model,, Journal of the Optical Society of America A, Vol. 29, pp. 2181–2189 (2012),
S. Peyvandi, S.H. Amirshahi, J. Hernández-Andrés, J.L Nieves, J.Romero,
39
Influence of natural daylight on soil-color description: assessment using a color-appearance model, Soil Science Society of America Journal, vol. 75, 984-993 (2011), M. Sánchez-Marañón, P.A. García, R. Huertas, J. Hernández-Andrés and M. Melgosa
38
Illuminant spectrum estimation at a pixel, Journal of the Optical Society of America A, vol. 28, 696-703 (2011), S. Ratnasingam and J. Hernández-Andrés
37
Extending “color constancy” outside the visible region, Journal of the Optical Society of America A, vol. 28, 541-547 (2011), S. Ratnasingam, S. Collins, and J. Hernández-Andrés
<
36
Color changes in objects in natural scenes as a function of observation distance and weather conditions, Applied Optics, vol. 50, 112-120, (2011), J. Romero, R. Luzón-González, J.L. Nieves and J. Hernández-Andrés
35
Optimum sensors for colour constancy in scenes illuminated by daylight
Journal of the Optical Society of America A, vol. 27, 2198-2207 (2010), S. Ratnasingam, S. Collins, and J. Hernández-Andrés
34
Calibrating the elements of a multispectral imaging system,
Journal of the Imaging Science and Technology, vol. 53, 031102-1-031110-10, (2009), M.A. López-Álvarez, J. Hernández-Andrés, J. Romero, J. Campos and A. Pons
33
Fountain rainbows , Applied Optics, vol. 47, H220-H224, (2008), S.D. Gedzelman, J. Hernández-Andrés,
32
Quantifying the "milky sky" experiment, Applied Optics, vol. 47, H128-H132, (2008)
S.D. Gedzelman, M.A. López-Álvarez, J. Hernández-Andrés and R. Greenler
31
Retrieval of the optical depth by an all-sky CCD camera, , Applied Optics, vol. 47, H182-H189, (2008), F.J. Olmo, A. Cazorla, L. Alados-Arboledas, M.A. López-Álvarez, J. Hernández-Andrés and J.Romero
30
Using a trichromatic CCD camera for spectral skylight estimation,Applied Optics, vol. 47, H31-H38, (2008), M. A. López-Álvarez, J. Hernández-Andrés, J. Romero, F. J. Olmo, A. Cazorla and L. Alados-Arboledas.
29
Developing an optimum computer-designed multispectral system comprising a monochrome CCD camera and a liquid-crystal tunable filter, Applied Optics, vol. 47, 4381-4390 (2008), M.A. López-Álvarez, J. Hernández-Andrés, J. Romero
28
A simple experiment to distinguish between replicated and duplicated compact discs using Fraunhofer diffraction, American Journal of Physics, vol. 76, 1137-1140, (2008), J. Fernández-Dorado, J. Hernández-Andrés, E.M. Valero, J. L. Nieves and J. Romero
27
Sensor-response-ratio constancy under changes in natural and artificial illuminants
Color Research and Application, Vol. 32, 284-292 (2007), J. Romero, D. Partal, J.L. Nieves and J. Hernández-Andrés
26
Recovering fluorescent spectra with an RGB digital camera and color filters using different matrix factorizations, Applied Optics, Vol. 46, 4144-4154 (2007), J.L. Nieves, E.M. Valero, J. Hernández-Andrés and J. Romero
25
Selecting algorithms, sensors and linear bases for optimum spectral recovery of skylight,
Journal of the Optical Society of America A, vol. 24, 942-956 (2007), M.A. López-Álvarez, J.Hernández-Andrés, E.M. Valero, J. Romero
24
Spectral sensitivity of sensors for a color-image descriptor invariant to changes in daylight conditions, Color Research and Application, Vol. 31, N. 5, pp. 391-398, (2006), J. Romero, J.Hernández-Andrés, J.L. Nieves and E.M. Valero
23
Crepuscular and nocturnal illumination and its effects on color perception by the nocturnal hawkmoth Deilephila elpenor, The Journal of Experimental Biology, Vol. 209, N. 5, pp. 789-800, (2006), S. Johnsen, A. Kelber, E. Warrant, A.M. Sweeney, E.A. Widder, R.L. Lee, Jr., and J.Hernández-Andrés
22
Multispectral synthesis of daylight using a commercial digital CCD camera, Applied Optics, Vol. 44, N. 27, pp. 5696-5703, (2005), J. L. Nieves, E.M. Valero, S.M.C. Nascimento, J.Hernández-Andrés and J. Romero
21
Designing a practical system for spectral imaging of skylight,
Applied Optics, Vol. 44, N. 27, pp. 5688-5695, (2005), M.A. Lopez-Alvarez, J. Romero, R.L. Lee, Jr. and J.Hernández-Andrés
20
Colors of the daytime overcast sky, Applied Optics, Vol. 44, N. 27, pp. 5712-5722, (2005)
R.L. Lee, Jr. and J.Hernández-Andrés
19
Short-term variability of overcast brightness, Applied Optics, Vol. 44, N. 27, pp. 5704-5711, (2005), R.L. Lee, Jr. and J.Hernández-Andrés
18
Group theoretical structure of spectral spaces, J. Math. Imaging and Vision, Vol. 23, N. 3, pp. 297-313, (2005), R. Lenz, T.H. Bui, and J.Hernández-Andrés
17
Changes in contrast thresholds with mean luminance for chromatic and luminance gratings: transition from the DeVries-Rose to Weber regions revisited, Color Research and Application, Vol. 29, N. 3, pp. 177-182, (2004), E.M. Valero, J.L. Nieves, J.Hernández-Andrés, and J.A. García
16
Spectral-reflectance linear models for color pattern recognition,, Applied Optics, Vol. 43, N. 9, pp. 1880-1891, (2004), J.L. Nieves, J.Hernández-Andrés, E.M. Valero, and J. Romero
15
Spectral daylight recovery using only a few sensors, Journal of the Optical Society of America A, Vol. 21, N. 1, pp. 13-23, (2004), J.Hernández-Andrés, J.L. Nieves, E.M. Valero, and J. Romero
14
Virtual tunnels and green glass: the colors of common-mirrors, American Journal of Physics, Vol. 72, N.1, pp. 53-59, (2004), R.L. Lee, Jr. and J.Hernández-Andrés
13
Color-signal filtering in the Fourier-frequency domain, Journal of the Optical Society of America A, Vol. 20, N. 9, pp. 1714-1724, (2003), J. Romero, E. Valero, J.Hernández-Andrés, and J.L.Nieves
12
Colour appearance of surfaces as affected by different time-varying colour-adaptation sequences, Optical Review, Vol. 10, N. 4, pp. 221-230, (2003), J.L. Nieves, E.M. Valero, J.Hernández-Andrés, and J. Romero
11
Color coordinates and color appearance of objects with daylight changes,
Color Research and Application, Vol. 28, N. 1, pp. 25-35, (2003), J. Romero, J. Hernández-Andrés, J.L.Nieves and J.A. Garcia
10
Color and luminance asymmetries in the clear sky, Applied Optics, Vol. 42, N. 3, pp. 458-464, (2003), J.Hernández-Andrés, R.L. Lee, Jr. and J. Romero
9
Measuring and modeling twilight's purple light, Applied Optics, Vol. 42, N. 3, pp. 445-457, (2003), R.L. Lee, Jr. and J.Hernández-Andrés.
8
Spectral-reflectance function recovery for improved colour-constancy experiments,
Displays, Vol. 23, N. 5, pp. 213-222, (2002), J.L. Nieves, F. Pérez-Ocón, J.Hernández-Andrés and J. Romero
7
Fizeau fringes at home, American Journal of Physics, Vol. 70, N. 7, pp. 684-688, (2002)
J.Hernández-Andrés, E. Valero, J.L.Nieves and J. Romero
6
Color and spectral analysis of daylight in southern Europe, Journal of the Optical Society of America A, Vol. 18, N. 6, pp. 1325-1335, (2001), J.Hernández-Andrés, J. Romero, J.L. Nieves and R.L. Lee, Jr.
5
Colorimetric and spectroradiometric characteristics of narrow-field-of-view clear fisheyeskylight in Granada, Spain, Journal of the Optical Society of America A, Vol. 18, N. 2, pp. 412-420, (2001), J.Hernández-Andrés, J. Romero and R.L. Lee, Jr.
4
Calculating correlated color temperatures across the entire gamut of daylight and skylight chromaticities, Applied Optics, Vol. 38, N. 27, pp. 5703-5709, (1999), J.Hernández-Andrés, R.L. Lee, Jr., J. Romero
3
Linear bases for spectral reflectance functions of acrylic paints, Color Research and Application, Vol. 23, N. 1, pp. 39-45, (1998), A.García-Beltrán, J.L.Nieves, J.Hernández-Andrés, J.Romero
2
Testing linear models on spectral daylight measurements, , Applied Optics, Vol. 37, N. 6, pp. 971-977, (1998), J.Hernández-Andrés, J.Romero, A.García-Beltrán, J.L.Nieves
1
Linear bases for representation of natural and artificial illuminants, Journal of the Optical Society of America A, Vol. 14, N. 5, pp. 1007-1014, (1997), J. Romero, A. García-Beltrán, J. Hernández-Andrés
Papers in non-JRC journals
5
Exploring what the eye cannot see, Optics and Photonics News (OPN), vol. 20, n. 5, pp. 18-19 (2009), J. Hernández-Andrés, J.A. García and J.L. Nieves
4
An innovative Erasmus Mundus Master program in Color in Informatics and Media Technology, Journal sur l'enseignement des sciences et technologies de l'information et des systèmes (J3eA), vol. 10, pp. 1010 (2011), A. Trémeau, J. Hardeberg, J. Hernández-Andrés, J.L. Nieves, J. Parkkinen
3
¿Fotografiamos el color tal y como lo percibimos?, Revista Eureka sobre Enseñanza y Divulgación de las Ciencias, vol. 7, pp. 137-141 (2010), J.L.Nieves, J.A. García, J. Hernández-Andrés, R. Huertas
2
Características colorimétricas de la luz-día, Ver y Oír, vol. 113, pp. 125-130 (1997), J. Hernández-Andrés, A. García-Beltrán
1
Luz-día: Composición y efectos de la radiación, Ver y Oír, vol. 106, pp. 335-342 (1996), J. Hernández-Andrés, J.L. Nieves
Books and chapters
11
El ojo humano (Capítulo de libro), CIENCIA CON LUZ PROPIA: APLICACIONES TECNOLÓGICAS DE LA LUZ (UNIDAD DIDÁCTICA), pp. 100-113, (2015), Edita: Fundación Española para la Ciencia y la Tecnología (FECYT), ISBN: 270-15-110-1, J. Hernández-Andrés
10
Adquisición, procesado y síntesis de imágenes en color e hiperespectrales (Capítulo), LIBRO HOMENAJE AL PROF. JUAN A. MORENTE, pp. 305-310, (2013), Edita: Universidad de Granada, ISBN: 978-84-338-5540-4, J. Romero, J.L. Nieves, J. Hernández-Andrés, E. Valero, R. Luzón, T. Eckhard, J. Ojeda, M.A. Martínez-Domingo y J. Song
9
La divulgación científica: algo más que la docencia y la investigación universitaria (Capítulo), LIBRO HOMENAJE AL PROF. JUAN A. MORENTE, pp. 175-181, (2013), Edita: Universidad de Granada, ISBN: 978-84-338-5540-4, J.A. García, F. Javier Perales, J. Romero, L. Gómez-Robledo, J.L. Nieves, J. Hernández-Andrés, R. Huertas, E. Valero
8
Adquisición de imágenes multiespectrales con un dispositivo basado en redes de difracción de Bragg y clasificación de materiales mediante fuzzy c-means modificado , CIENCIA Y TECNOLOGÍA DEL COLOR. SEMINARIO 2012 DE LA RED TEMÁTICA, pp. 43-50, (2012), Copicentro Granada SL, ISBN: 978-84-15536-60-4, A. Rodríguez, F.A. Navas, J.L. Nieves, E.M. Valero, E. Garrote, J. Hernández-Andrés, J. Romero
7
CIENCIA Y REALIDAD: DE LA PERCEPCIÓN AL CONOCIMIENTO, GUÍA DIDÁCTICA, (2009), Edita: Parque de las Ciencias de Granada, Gráficas Alhambra, ISBN: 978-84-935629-9-1, C. Sampedro, J.D. Jiménez, J. Hernández-Andrés, E.M. Valero, J.L. Nieves, J.A. García, J. Romero, R. Huertas
6
Color changes in a natural scene due to the interaction between the light and the atmosphere (Capítulo de libro), CIENCIA Y TECNOLOGÍA DEL COLOR. SEMINARIO 2009 DE LA RED TEMÁTICA, pp. 9-11, (2012), Edita: Copicentro Granada SL, ISBN: 978-84-92680-77-1, J. Romero, R. Luzón, J. Hernández-Andrés, J.L. Nieves
5
Factores de corrección en la calibración de una cámara CCD (Capítulo de libro), ALGUNAS CUESTIONES DE CIENCIA: LIBRO HOMENAJE AL PROFESOR MANUEL QUINTANILLA, pp. 327-336, (2007), Edita: Universidad de Zaragoza, ISBN: 978-84-7733-921-2, M.A. López-Álvarez,J. Hernández-Andrés, J. Campos, A. Pons, J.L. Nieves, E.M. Valero, C. Plata, J. Romero
4
Advances in the application of multispectral techniques for the estimation of spectral skylight (Capítulo de libro), CIENCIA Y TECNOLOGÍA DEL COLOR. SEMINARIO 2007 DE LA RED TEMÁTICA, pp. 9-12, (2007), Edita: Copicentro Granada SL, ISBN: 84-96856-31-3, M.A. López-Álvarez, J. Hernández-Andrés, J. Romero
3
PROCEEDINGS BOOKS OF THE 10TH CONGRESS OF THE INTERNATIONAL COLOUR ASSOCIATION, VOL 2
, (2005), Edita: Gráficas Alhambra SA, ISBN: 84-609-5164-2, J.L. Nieves, J. Hernández-Andrés
2
PROCEEDINGS BOOKS OF THE 10TH CONGRESS OF THE INTERNATIONAL COLOUR ASSOCIATION, VOL 1
, (2005), Edita: Gráficas Alhambra SA, ISBN: 84-609-5163-4, J.L. Nieves, J. Hernández-Andrés
1
INTRODUCCIÓN A LA TEORÍA DIFRACCIONAL DE LA FORMACIÓN DE IMÁGENES
, (2002), Edita: Imprenta Enrique Reca, ISBN: 84-607-4970-3, J.L. Nieves, J.R. Jiménez, J. Hernández-Andrés
Patents
2
Dispositivo portátil para la autovisualización de células sanguíneas en la retina, Nº Patente: ES2331172, Fecha concesión: 26/01/2011, Entidad titular: Universidad de Granada,
M.A. López-Álvarez, J. Hernández-Andrés, J.L. Nieves Gómez
1
Método Óptico y Aparato para la Detección de Copias Piratas de CDs
, Nº Patente: ES2332393, Fecha concesión: 10/06/2010, Entidad titular: Universidad de Granada, J. Fernández Dorado, J. Hernández-Andrés, E. M. Valero, J.L. Nieves Gómez, J. Romero Mora
Papers in scientific conferences
88
Evaluación de las gafas EnChroma® y VariantorTM mediante tests de visión del color, XI CONGRESO NACIONAL DE COLOR, Ourense (2016), R. Huertas, E. Valero, A. Alizadeh, L. Gómez-Robledo, J. Hérnandez-Andrés, M. Melgosa, E.Hita
87
Natural scene under colorblindness simulator glasses and glasses for color-blind people to enhance color vision, 12TH INTERNATIONAL MEETING LIGHT AND COLOR IN NATURE, Granada (2016), R. Huertas, L. Gómez-Robledo, A. Alizadeh, E. Valero, J. Hérnandez-Andrés, R. Ghinea, E.Hita
86
A database of Multispectral High Dynamic Range Polarimetric VIS+NIR images of outdoor scenes, 12TH INTERNATIONAL MEETING LIGHT AND COLOR IN NATURE, Granada (2016), M.A. Martínez-Domingo, E.M. Valero, J. Hérnandez-Andrés
85
An inexpensive spectral sensor for MMPT in partial shade, 32nd EUROPEAN PV SOLAR ENERGY CONFERENCE, Munich (2016), M.A. López-Álvarezz, S. Collins, J. Hérnandez-Andrés
84
Adaptive registration of line-scan multi-spectral image data for non-flat scanning objects, COLOR AND IMAGING CONFERENCE (CIC 2015), Darmstadt (2015), T. Eckhard, J. Eckhard, E.M. Valero, J. Hérnandez-Andrés
83
HDR Imaging - Automatic Exposure Time Estimation. A Novel Approach, INTERNATIONAL COLOR ASSOCIATION CONGRESS (AIC), Tokyo (2015), M.A. Martínez-Domingo, E.M. Valero, J.Hernández-Andrés, J.Romero
82
How optical imaging benefits from human visual coding of the statistics of natural images: beyond spectral and color information, 23TH CONGRESS OF THE INTERNATIONAL COMMISSION FOR OPTICS (ICO-23), Santiago de Compostela (2014), J.L. Nieves, J.Hernández-Andrés, E.M. Valero, J.Romero
81
Improved spectral density measurement from estimated re ectance data with kernel ridge regression, INTERNATIONAL SYMPOSIUM ON MULTISPECTRAL COLOUR SCIENCE MCS 14 (PART OF THE INTERNATIONAL CONFERENCE ON IMAGE AND SIGNAL PROCESSING 2014), Cherbourg (2014), T. Eckhard, M. Klammer, E.M. Valero, J.Hernández-Andrés
80
Incorporating active-learning techniques into the photonics-related teaching in the Erasmus Mundus Master in “Color in Informatics and Media Technology", 12TH INTERNATIONAL CONFERENCE ON EDUCATION AND TRAINING IN OPTICS AND PHOTONICS (ETOP 2013), Oporto (2013), A.M. Pozo, M. Rubiño, J.Hernández-Andrés, J.L. Nieves
79
Testing the Recursive Rejection method for training set selection in spectral reflectance estimation: performance evaluation when few data are provided as input, MEETING OF THE AIC (INTERNATIONAL COLOR ASSOCIATION), Newcastle (2013), E.M. Valero, T. Eckhard, J.Hernández-Andrés, J. Romero
78
Frecuencias espaciales y captura de imágenes, X CONGRESO NACIONAL DE COLOR, Valencia (2013), J. Romero, J.L. Nieves, J.Hernández-Andrés, E.M. Valero
77
A comparative analysis of spectral estimation approaches applied to print inspection, 18TH WORKSHOP OF THE GERMAN COLOR GROUP, Darmstadt (2012), T. Eckhard, E. M. Valero, J.Hernández-Andrés
76
Good practices in the development of the Erasmus Mundus Master program in Color in Informatics and Media Technology, ICHE 2012: INTERNATIONAL CONFERENCE ON HIGHER EDUCATION, Paris (2012), J. Hardeberg, J. Hernández-Andrés, J. L. Nieves, M. Hauta-Kasari, J. Parkkinen and A. Trémeau
75
Estimación de reflectancias espectrales a partir de respuestas de sensores TFD, X REUNIÓN NACIONAL DE ÓPTICA, Zaragoza (2012), M.A. Martínez-Domingo, E. Valero, G. Langfelder, J. Hernández-Andrés
74
Spectral reflectance estimation from Transverse Field Detectors responses, 6TH EUROPEAN CONFERENCE ON COLOUR IN GRAPHICS, IMAGING AND VISION (CGIV-2012), Amsterdam (2012), M.A. Martínez-Domingo, E. Valero, J. Hernández-Andrés, G. Langfelder
73
Modified fuzzy c-means applied to a Bragg grating-based spectral imager for material clustering, ELECTRONIC IMAGING 2012, California (2012), A. Rodríguez, J. L. Nieves, E. Valero, E. Garrote, J. Hernández-Andrés, J. Romero
72
From color to spectral information: a round-trip ticket, 10TH EURO-AMERICAN WORKSHOP ON INFORMATION OPTICS (WIO), Benicassim (2011), J. Hernández-Andrés, J. L. Nieves, E. Valero, J. Romero
71
Evaluation and optimization of spectral estimation algorithms for printer inks, MEETING OF THE AIC (INTERNATIONAL COLOR ASSOCIATION), Zurich (2011), Y. Hu, J. Hernández-Andrés, J.L Nieves, E. Valero, J. Romero, M. Schnitzlein, D. Nowack
70
Influence of color scales and subjetive color impressions in the development of architectural projects, MEETING OF THE AIC (INTERNATIONAL COLOR ASSOCIATION), Zurich (2011), J.L Nieves, E.M. Valero, Y. Hu, J. Marina, J. Hernández-Andrés, E. Morón, J. Romero
69
Simulating Crepuscular Rays, 10TH INTERNATIONAL MEETING LIGHT AND COLOR IN NATURE, St. Mary's City (2010), S.D. Gedzelman, J. Hernández-Andrés, M. Vollmer
68
Color Degradation Of Objects Due To The Atmosphere, 10TH INTERNATIONAL MEETING LIGHT AND COLOR IN NATURE, St. Mary's City (2010), J. Hernández-Andrés, R. Luzón, J. L. Nieves, J. Romero
67
Viabilidad del uso de algoritmos de clustering en la recuperación espectral a partir de respuestas de un conjunto de sensores, IX CONGRESO NACIONAL DE COLOR, Alicante (2010), E. M. Valero, N. Lyubova, J.L. Nieves, J. Hernández-Andrés
66
Recovering normal vectors and albedo under uncontrolled illumination with and RGB digital camera, 5TH EUROPEAN CONFERENCE ON COLOUR IN GRAPHICS, IMAGE AND VISION (CGIV 2010), Joensuu (2010), C. Plata, J.L. Nieves, E. Valero, J. Hernández-Andrés, J. Romero
65
Estudio de la difracción por reflexión en superficies pseudo-periódicas y aplicación a la detección de discos ópticos originales, IX REUNIÓN NACIONAL DE ÓPTICA, Ourense (2009), J. Fernández-Dorado, J. Hernández-Andrés, J.L. Nieves, E.M. Valero, J. Romero
64
Divulgación de la óptica en contextos multidisciplinares, IX REUNIÓN NACIONAL DE ÓPTICA, Ourense (2009), J.A.García, J. Hernández-Andrés, J.L. Nieves, J. Romero, R. Huertas, L. Gómez, E.M. Valero, R. Roa, E. Hita
63
Red Temática de Investigación Cooperativa "Procesado de Imágenes y Señal Multidimensional (PRISMA)", IX REUNIÓN NACIONAL DE ÓPTICA, Ourense (2009), G. Cristobal, G. Bueno, E.Gil, J.L. Nieves, J. Hernández-Andrés
62
Influencia de la curtosis de muestras rugosas en la recuperación de albedo y normales con cámara RGB, IX REUNIÓN NACIONAL DE ÓPTICA, Ourense (2009), C. Plata, J.L. Nieves, J. Hernández-Andrés, J. Romero
61
Color changes in a natural scene due to the interaction between the light and the atmosphere, 11TH CONGRESS OF THE INTERNATIONAL COLOUR ASSOCIATION (AIC2009), Sydney (2009), J. Romero, R. Luzón, J. Hernández-Andrés, J.L. Nieves
60
A Method for Designing and Assessing Sensors for Chromaticity Constancy in High Dynamic Range Scenes, COLOR IMAGING CONFERENCE CIC17, Alburquerque (2009), S. Ratnasingam, S. Collins, J. Hernández-Andrés
59
Building an optimum computer-designed multispectral system for skylight acquisition, CGIV-08, 4TH EUROPEAN CONFERENCE ON COLOUR IN GRAPHICS, IMAGING AND VISION, Terrassa (2008), M.A. López-Álvarez, J. Hernández-Andrés, J. Romero
58
New sample election method for multispectral system color calibration, AIC INTERIM MEETING 2008, Stockholm (2008), M.A. López-Álvarez, J. Hernández-Andrés, J. Romero
57
Montaje para la didáctica de las interferencias: Franjas interferenciales en cuñas de aire, XXXI REUNIÓN BIENAL DE LA REAL SOCIEDAD ESPAÑOLA DE FÍSICA Y 17º ENCUENTRO IBÉRICO PARA LA ENSEÑANZA DE LA FÍSICA, Granada (2007), E.M. Valero, R. Huertas, C.M. Salas, J. Hernández-Andrés
56
Ondas: experiencias con cuerdas de guitarra, XXXI REUNIÓN BIENAL DE LA REAL SOCIEDAD ESPAÑOLA DE FÍSICA Y 17º ENCUENTRO IBÉRICO PARA LA ENSEÑANZA DE LA FÍSICA, Granada (2007), J.A. García, J. Hernández-Andrés, M.A. López-Álvarez, J.L. Nieves, J. Romero
55
Crepuscular and nocturnal illumination and its effects on color perception by the nocturnal kawkmoth Deilephila elpenor, 9TH INTERNATIONAL MEETING ON LIGHT AND COLOR IN NATURE, Montana (2007), S. Jonsen, A. Kelber, E. Warrant, A.M. Sweeney, E.A. Widder, R.L. Lee, Jr., J. Hernández-Andrés
54
Using all-sky imager to obtain aerosol and cloud optical properties, 9TH INTERNATIONAL MEETING ON LIGHT AND COLOR IN NATURE, Montana (2007), F.J. Olmo, A. Cazorla, L. Alados-Arboledas, M.A. López-Álvarez, J. Hernández-Andrés, J. Romero
53
Taking advantage of a trichromatic CCD digital camera for spectral estimation, 9TH INTERNATIONAL MEETING ON LIGHT AND COLOR IN NATURE, Montana (2007), M.A. López-Álvarez, J. Hernández-Andrés, J. Romero, F.J. Olmo, A. Cazorla, L. Alados-Arboledas
52
Variación del ruido con el tiempo de exposición en una CCD, VIII CONGRESO NACIONAL DEL COLOR, Madrid (2007), M.A.López-Álvarez, J. Hernández-Andrés, J.Campos, A.Pons, J. Romero
51
Elección de espectros de entrenamiento para el calibrado de un sistema multiespectral, VIII CONGRESO NACIONAL DEL COLOR, Madrid (2007), M.A.López-Álvarez, J. Hernández-Andrés, J. Romero
50
Diseño de un sistema multiespectral basado en filtro sintonizable, VIII CONGRESO NACIONAL DEL COLOR, Madrid (2007), M.A.López-Álvarez, J. Hernández-Andrés, J. Romero
49
Análisis y diseño de sistemas para la recuperación de luz-día y luz-cielo con técnicas multiespectrales, VIII REUNIÓN NACIONAL DE ÓPTICA, Alicante (2006), J.Romero, J.L. Nieves, J. Hernández-Andrés, E. Valero, M.A. López-Alvarez, C. Plata
48
Selección de filtros y algoritmos óptimos en el diseño de sistemas multiespectrales, VIII REUNIÓN NACIONAL DE ÓPTICA, Alicante (2006), M.A. López-Alvarez, J. Hernández-Andrés, J.Romero
47
Influence of the recovery method in the optimum sensors for spectral imaging of skylight, ELECTRONIC IMAGING CONFERENCE, San José (2006), M.A. López-Alvarez, J. Hernández-Andrés, J.L. Nieves, J.Romero
46
Spectral recovery of artificial illuminants using a CCD colour camera with Nonnegative Matrix Factorization and Independent Component Analysis, IS&T'S 3RD EUROPEAN CONFERENCE ON COLOUR IN GRAPHICS, IMAGING, AND VISION (CGIV'06), Leeds (2006), J.L. Nieves, E. Valero, J. Hernández-Andrés, J. Romero
45
Separating illuminant and surface reflectance spectra from filtered trichromatic camera measurements, IS&T'S 3RD EUROPEAN CONFERENCE ON COLOUR IN GRAPHICS, IMAGING, AND VISION (CGIV'06), Leeds (2006), M.A. López-Álvarez, E.M. Valero, J. Hernández-Andrés
44
Daylight and skylight spectral analysis and estimation, SEMINAR ON COLOR RESEARCH APPROACHES, AUTUMN SEMINAR OF THE PATTERN RECOGNITION SOCIETY OF FINLAND, Joensuu (2006), J. Hernández-Andrés
43
Identification of clouds and sky in digital images using a principal component analysis, 10TH CONGRESS OF THE INTERNATIONAL COLOR ASSOCIATION (AIC'05), Granada (2005), C. Plata, E.M. Valero, A. Cazorla, F.J. Olmo, L. Alados-Arboledas, J. Hernández-Andrés, J.L. Nieves
42
Colorimetric and spectral combined metric for the optmization of multispectral systems, 10TH CONGRESS OF THE INTERNATIONAL COLOR ASSOCIATION (AIC'05), Granada (2005), M.A. López-Álvarez, J. Hernández-Andrés, E.M. Valero, J.L. Nieves
41
Cone-signal ratio dependence on natural and artificial illuminants, 10TH CONGRESS OF THE INTERNATIONAL COLOR ASSOCIATION (AIC'05), Granada (2005), J. Romero, D. Partal, J. L. Nieves, J. Hernández-Andrés
40
Influence of daylight changes in colour coordinates of a Munsell Soil colour chart, 10TH CONGRESS OF THE INTERNATIONAL COLOR ASSOCIATION (AIC'05), Granada (2005), M. Sánchez-Marañón, M. Melgosa, R. Huertas, J. Hernández-Andrés, J. L. Nieves, J. A. García, J. Romero
39
Image quality evaluation for ICA-based compression of natural scenes, 10TH CONGRESS OF THE INTERNATIONAL COLOR ASSOCIATION (AIC'05), Granada (2005), E.M. Valero, J.L. Nieves, J. Hernández-Andrés, J. Romero
38
Optimal sensors for recovering skylight in the presence of noise, 10TH CONGRESS OF THE INTERNATIONAL COLOR ASSOCIATION (AIC'05), Granada (2005), M. A. López-Álvarez, J. Hernández-Andrés, R. L. Lee Jr., J. Romero
37
Spectral synthesis of daylight using a digital CCD camera, 10TH CONGRESS OF THE INTERNATIONAL COLOR ASSOCIATION (AIC'05), Granada (2005), J.L.Nieves, E.Valero, S.M.C.Nascimento, J.Hernández-Andrés, J. Romero
36
Time-Frequency Analysis for Multi-Channel Color Pattern Recognition, SECOND EUROPEAN CONFERENCE ON COLOR IN GRAPHICS, IMAGING AND VISION (CGIV04), Aachen (2004), R. Lenz, J.Hernández-Andrés
35
Independent component analysis with different daylight illuminants, SECOND EUROPEAN CONFERENCE ON COLOR IN GRAPHICS, IMAGING AND VISION (CGIV04), Aachen (2004), E.M. Valero, J. L. Nieves, J. Hernández-Andrés and J.Romero
34
Optical color pattern recognition based on linear models of surface and illuminant spectra, SECOND EUROPEAN CONFERENCE ON COLOR IN GRAPHICS, IMAGING AND VISION (CGIV04), Aachen (2004), J. L. Nieves, J. Hernández-Andrés, E.M. Valero, J.Romero
33
Optimal spectral sensitivities of a multispectral image acquisition system, SECOND EUROPEAN CONFERENCE ON COLOR IN GRAPHICS, IMAGING AND VISION (CGIV04), Aachen (2004), J. Hernández-Andrés, E. M. Valero, J. L. Nieves, J. Romero
32
Testing spectral sensitivity of sensors for color invariant at a pixel, SECOND EUROPEAN CONFERENCE ON COLOR IN GRAPHICS, IMAGING AND VISION (CGIV04), Aachen (2004), J. Romero, J. Hernández-Andrés, J. L. Nieves, E. Valero
31
Detección remota de luz-cielo con tres sensores, VII CONGRESO NACIONAL DE COLOR, Pamplona(2004), M.A. López-Álvarez, J.Hernández-Andrés, J.L.Nieves, J. Romero
30
Optimización de invariantes frente al cambio de iluminante, VII CONGRESO NACIONAL DE COLOR, Pamplona(2004), J. Romero, J. Hernández-Andrés, D. Partal, E.M. Valero
29
Uso de modelos lineales de representación de reflectancias e iluminantes para el reconocimiento de objetos policromáticos, VII CONGRESO NACIONAL DE COLOR, Pamplona(2004), C. Plata, J. L. Nieves, J. Hernández-Andrés, E.M. Valero
28
Atención visual selectiva con Gabor cromáticos: efectos de interferencia, VII CONGRESO NACIONAL DE COLOR, Pamplona(2004), E.M. Valero, J. L. Nieves, L. Chelazzi, J. Hernández-Andrés
27
Colors of clear and overcast skies, 8th TOPICAL MEETING IN METEOROLOGICAL OPTICS, Bad Honnef (2004), R.L. Lee, Jr., J. Hernández-Andrés
26
Temporal variability of overcast illuminances, 8th TOPICAL MEETING IN METEOROLOGICAL OPTICS, Bad Honnef (2004), R.L. Lee, Jr., J. Hernández-Andrés
25
Towards a skylight spectral remote sensing camera, 8th TOPICAL MEETING IN METEOROLOGICAL OPTICS, Bad Honnef (2004), J. Hernández-Andrés, M.A. López-Álvarez, R.L. Lee, Jr.
24
Looking for an invariant under daylight changes with L, M, S-type sensors, AIC INTERIM MEETING, Porto Alegre (2004), J.Romero, D. Partal, J.L. Nieves, J. Hernández-Andrés
23
One-parameter subgroups and the chromaticity properties of time-changing illumination spectra, COLOR IMAGING: PROCESSING, HARDCOPY, AND APPLICATIONS VIII, IS&T/SPIE, Santa Clara (2003), R. Lenz, T. H. Bui, J. Hernández-Andrés
22
Filtrado paso-banda en el dominio de las frecuencias cromáticas como método para distinguir cambios de iluminante de cambios de reflectancia, 7ª REUNIÓN NACIONAL DE ÓPTICA, Santander (2003), E.M. Valero, J.L. Nieves, J. Hernández Andrés, J. Romero.
21
Modelado lineal de reflectancias para el reconocimiento de objetos en color, 7ª REUNIÓN NACIONAL DE ÓPTICA, Santander (2003), J.L. Nieves, J. Hernández Andrés, E.M. Valero, J. Romero.
20
Reconstrucción espectral de luz-día con tres sensores, 7ª REUNIÓN NACIONAL DE ÓPTICA, Santander (2003), J. Hernández Andrés, J.L. Nieves, E.M. Valero, J. Romero.
19
Túneles infinitos y espejos verdes, 7ª REUNIÓN NACIONAL DE ÓPTICA, Santander (2003), J. Hernández Andrés, R.L. Lee, Jr.
18
Colorimetría, visión del color, reproducción y procesado de imágenes en color, 7ª REUNIÓN NACIONAL DE ÓPTICA, Santander (2003), J. Romero et al.
17
Variaciones del umbral de detección de redes cromáticas rojo-verde con el nivel de luminancia media, VI CONGRESO NACIONAL DE COLOR, Sevilla (2002), E.M.Valero, J.L.Nieves, J. Hernández Andrés, J.A.García, J. Romero
16
Franjas de Fizeau con un escáner, VI CONGRESO NACIONAL DE COLOR, Sevilla (2002), J. Hernández Andrés, E. Valero, J.L. Nieves, J. Romero
15
Asimetrías de color y luminancia en cielos despejados, VI CONGRESO NACIONAL DE COLOR, Sevilla (2002), J. Hernández Andrés, R.L. Lee, Jr., J. Romero
14
Loss of spectral information in the colour signals filtered by the human visual system, CGIV'2002: FIRST EUROPEAN CONFERENCE ON COLOUR IN GRAPHICS, IMAGING, AND VISION, Poitiers (2002), J. Romero, J.L. Nieves, E.M. Valero, J. Hernández Andrés, J.A. García
13
Influence of the mean luminance on the detection threshold for red-green chromatic gratings, 9th CONGRESS OF THE INTERNATIONAL COLOUR ASSOCIATION (AIC), Rochester (2001), J.L.Nieves, E.Valero, J. Hernández Andrés, J.A.García, J.Romero
12
Daylight spectral power distribution recovery through a linear model and few filters, 9th CONGRESS OF THE INTERNATIONAL COLOUR ASSOCIATION (AIC), Rochester (2001), J. Hernández Andrés, J.Romero, J.L. Nieves
11
Twilight’s purple light: New evidence on an old problem, 7th TOPICAL MEETING ON METEOROLOGICAL OPTICS, Boulder (2001), R.L. Lee, Jr., J. Hernández Andrés
10
Color asymmetries in narrow FOV clear-sky radiances, 7th TOPICAL MEETING ON METEOROLOGICAL OPTICS, Boulder (2001), J. Hernández Andrés, R.L. Lee, Jr., J. Romero
9
Color appearance maintenance with changes in daylight illuminants, AIC 2000 MEETING, Seoul (2000), J. Romero, J. Hernández Andrés, J.L. Nieves, J.A. García
8
El color del cielo despejado en Granada, 6ª REUNIÓN NACIONAL DE ÓPTICA, Medina del Campo (2000), J. Hernández Andrés, J. Romero, J.L. Nieves
7
Variaciones del umbral de detección de redes cromáticas rojo verde con el tamaño de campo, 6ª REUNIÓN NACIONAL DE ÓPTICA, Medina del Campo (2000), E. Valero, J.L. Nieves, J.A. García, J. Hernández Andrés
6
El color de la luz natural en Granada, V CONGRESO NACIONAL COLOR, Terrassa (1999), J. Hernández Andrés, J.L. Nieves, J. Romero
5
The colour of natural light in Granada (Spain), AIC 1999 MIDTERM MEETING, Warsaw (1999), J. Hernández Andrés, J. Romero
4
Determinación experimental de curvas de sensibilidad al contraste cromático para observadores normales y anómalos, IV CONGRESO NACIONAL COLOR, Jarandilla de la Vera (1997), J. Romero, E.M. Valero, J.A. García, J. Hernández Andrés
3
Colorimetría y modelos de visión del color, 5ª REUNIÓN NACIONAL DE ÓPTICA, Valencia (1997), E. Hita et al.
2
Filtros de banda estrecha en el análisis de color, 5ª REUNIÓN NACIONAL DE ÓPTICA, Valencia (1997), A. García-Beltrán, J. Hernández Andrés, J.L. Nieves, J. Romero
1
Spectral reflectance recovering through linear model and narrow band filters, OPTICAL SOCIETY OF AMERICA (OSA) ANNUAL MEETING, Portland (1995), A. García-Beltrán, J.L. Nieves, J. Hernández-Andrés, J. Romero
Databases
Granada daylight spectral database
The spectral daylight database (2600 daylight spectra) was measured for all sky states during a two year period at Granada, Spain. In the paper J. Hernández-Andrés, J. Romero, J.L. Nieves & R.L. Lee, Jr., "Color and spectral analysis of daylight in southern Europe", Journal of the Optical Society of America A, Vol. 18, N. 6, pp. 1325-1335, June 2001 we describe in detail the chromaticity coordinates, correlated color temperatures (CCT), luminous efficacies, and relative UV and IR contents of Granada daylight. Our principal-component analysis shows that Granada daylight spectra can be adequately represented by using six-dimensional linear models in the visible, whereas seven-dimensional models are required if we include the UV or near-IR. Yet on average only three-dimensional models are needed to reconstruct spectra that are colorimetrically indistinguishable from the original spectra.
IMPORTANT: If you use this data, you must cite the source publication in full: J. Hernández-Andrés, J. Romero, J.L. Nieves & R.L. Lee, Jr., "Color and spectral analysis of daylight in southern Europe", Journal of the Optical Society of America A, Vol. 18, N. 6, pp. 1325-1335, June 2001
Link to the Granada daylight spectral database: click here
Granada skylight spectral database
The spectral skylight database (over 1500 skylight spectra) was measured measured during a seven-month period in Granada, Spain. In the paper J. Hernández-Andrés, J. Romero& R.L. Lee, Jr., "Colorimetric and spectroradiometric characteristics of narrow-field-of-view clear skylight in Granada, Spain", Journal of the Optical Society of America A, Vol. 18, N. 2, pp. 412-420, Feb 2001 we use spectral radiances measured within 3° fields of view (FOV's) to define colorimetric characteristics along four sky meridians: the solar meridian and three meridians at azimuths of 45°, 90°, and 315° relative to it. The resulting clear-sky chromaticities in 44 different view directions (1) are close to but do not coincide with the CIE daylight locus, (2) form V-shaped meridional chromaticity curves along it (as expected from theory), and (3) have correlated color temperatures (CCT's) ranging from 3800 K to infinity K. We also routinely observe that sky color and luminance are asymmetric about the solar meridian, usually perceptibly so. A principal-components analysis shows that three vectors are required for accurate clear-sky colorimetry, whereas six are needed for spectral analyses.
IMPORTANT: If you use this data, you must cite the source publication in full: J. Hernández-Andrés, J. Romero& R.L. Lee, Jr., "Colorimetric and spectroradiometric characteristics of narrow-field-of-view clear skylight in Granada, Spain", Journal of the Optical Society of America A, Vol. 18, N. 2, pp. 412-420, Feb 2001
Link to the Granada skylight spectral database: click here
Daylight spectra generated with SBDART
The global radiation spectrum is affected by a wide range of atmospheric components, including solar geometry, aerosols, gases, cloud cover and surface reflectance properties which all modify the spectral radiation as it passes through the atmosphere and reaches ground level. With an aim of understanding the influence of atmospheric components and phases of daylight on colorimetric specifications of downward radiation, we incorporate a wide range of plausible atmospheric parameters into a radiative transfer code and generate a large set of illuminations which may commonly occur in nature. We investigate colorimetric extension of plausible daylight, sunlight and skylight illuminations and analyze atmospheric components which cause substantial variation in the color of natural illumination.
IMPORTANT: If you use this data, you must cite the source publication in full: Colorimetric analysis of outdoor illumination across varieties of atmospheric conditions, S. Peyvandi, J. Hernández-Andrés, F.J. Olmo, J.L. Nieves, J. Romero, Journal of the Optical Society of America A, vol. 33, n. 6, pp. 1049-1059 (2016)
You can download the data at:
click here
Postal address:
Javier Hernández Andrés
Departamento de Óptica
Edificio Mecenas
Facultad de Ciencias
Campus Fuentenueva
Granada - 18071
SPAIN
61
Long-term effects of blue-blocking spectacle lenses on color perception, Optics Express, in press (2022), M. Santandreu, E. M. Valero, L. Gómez-Robledo, R. Huertas, M.A. Martínez-Domingo, J. Hernández-Andrés
60
Color vision deficiencies and camouflage: a comparative study between normal and CVD observers, Optics Express, vol. 30, N. 8, pp. 13699-13713 (2022), M.A. Martínez-Domingo, A. Galdón, L. Gómez-Robledo, R. Huertas, J. Hernández-Andrés, E.M. Valero,
59
Band selection for dehazing algorithms applied to hyperspectral images in the visible range, Sensors, vol. 21, 5935 (2021), S. Fernández-Calvero, M.A. Martínez-Domingo, E.M. Valero, J. Romero, J.L. Nieves, J. Hernández-Andrés,
58
Is it really possible to compensate for color blindness with a filter?, Coloration Technology, vol. 137, pp. 64-67 (2021), E.M. Valero, M.A. Martínez-Domingo, L. Gómez-Robledo, R. Huertas, J. Hernández-Andrés, J.L. Nieves, and J. Romero
57
Single image dehazing algorithm analysis with hyperspectral images in the visible range, Sensors, vol. 20, pp. 6690 (2020), M.A. Martínez-Domingo, E.M. Valero, J.L. Nieves, P.J. Molina-Fuentes, J. Romero and J. Hernández-Andrés
56
Comment on “Metasurface-based contact lenses for color visión deficiency”, Optics Letters, vol. 45, pp. 5117-5118 (2020), R. Huertas, M.A. Martínez-Domingo, E.M. Valero, L. Gómez-Robledo and J. Hernández-Andrés
55
Spectral filter selection for increasing chromatic diversity in CVD subjects, Sensors, vol. 20, 2023-2038 (2020), M.A. Martínez-Domingo, E.M. Valero, L. Gomez-Robledo, R. Huertas, J. Hernández-Andrés
54
Short-term effects of text-background color combinations on the dynamics of the accommodative response, Vision Research, vol 166, pp. 33-42 (2020), R. Jiménez, B. Redondo, R. Molina, M. A. Martínez-Domingo, J. Hernández-Andrés, J. Vera,
53
Assessment of VINO filters for correcting red-green Color Vision Deficiency, Optics Express, vol 27, N. 13, pp. 17954-17967 (2019), M.A. Martínez-Domingo, L. Gómez-Robledo, E.M. Valero, R. Huertas, J. Hernández-Andrés, S. Ezpeleta and E. Hita
52
Do EnChroma glasses improve color vision for colorblind subjects?, Optics Express, vol 26, N. 22, pp. 28682-28692 (2018), L. Gómez-Robledo, E.M. Valero, M.A. Martínez-Domingo, R. Huertas and J. Hernández-Andrés
51
Image Processing Pipeline for Segmentation and Material Classification based on Multispectral High Dynamic Range Polarimetric Images, Optics Express, vol 25, N. 24, pp. 30073-30090 (2017), M.A. Martínez-Domingo, E.M. Valero, J. Hernández-Andrés, S. Tominaga, T. Horiuchi and K. Hirai
50 Subpixel Accurate Calibration of Line-Scan Multi-Spectral Images Using a Polynomial or B-Spline based Registration Model, Journal of Imaging Science and Technology, vol 61, N. 3, pp. 30503-1-30503-11 (2017) , T. Eckhard, J. Eckhard, E.M. Valero, J. Hernández-Andrés
49
The Design of a Low-cost Radiometric System for Photovoltaic Solar Cells, IEEE Journal of Photovoltaics, vol. 6, N. 6, pp. 1605-1610 (2016), M.A. López-Álvarez, S. Collins, J. Hernández-Andrés
48
Colorimetric Analysis of Outdoor Illumination across Varieties of Atmospheric Conditions, Journal of the Optical Society of America A, vol. 33, N. 6 (2016), pp. 1049-1059, S. Peyvandi, J. Hernández-Andrés, F.J. Olmo, J.L. Nieves, J. Romero
47
Adaptive exposure estimation for high dynamic range imaging applied to natural scenes and daylight skies, Applied Optics, vol. 54, N. 4, pp. B241-B250 (2015), M.A. Martínez-Domingo, E.M. Valero, J. Hernández-Andrés
46
Combining Transverse Field Detectors and Color Filter Arrays to improve multispectral imaging systems, Applied Optics, vol. 53, N. 13, pp. C14-C24 (2014), M.A. Martínez-Domingo, E.M. Valero, J. Hernández-Andrés, J. Romero and G. Langfelder
45
Adaptive global training set selection for spectral estimation of printed inks using reflectance modeling, Applied Optics, vol. 53, N. 4, pp. 709-719 (2014), T. Eckhard, E.M. Valero, J. Hernández-Andrés, M. Schnitzlein
44
Evaluating a logarithmic kernel for spectral reflectance estimation - effects on model parametrization, training set size and number of sensor spectral channels, Journal of the Optical Society of America A, vol. 31, N.3, pp. 541-549 (2014), T. Eckhard, E.M. Valero, J. Hernández-Andrés, V. Heikkinen
43
Comparative performance analysis of spectral estimation algorithms and computational optimization of a multispectral imaging system for print inspection, Color Research and Application, vol 39, pp. 16-27 (2014), E.M. Valero, Y. Hu, J. Hernández-Andrés, T. Eckhard, J.L Nieves, J.Romero, M. Schnitzlein, D. Nowack
42
Analysis of Colour Constancy algorithms using the Knowledge of Variation of Correlated Colour Temperature of Daylight with Solar Elevation, EURASIP Journal on Image and Video Processing, 2013, 2013:14, S. Ratnasingam, S. Collins, and J. Hernández-Andrés
41
Generalized inverse-approach model for spectral-signal recovery, IEEE-TIP Transactions on Image Processing Journal, vol. 22, pp. 501-510 (2013), S. Peyvandi, S.H. Amirshahi, J. Hernández-Andrés, J.L Nieves, J.Romero
40
Spectral Recovery of Outdoor Illumination by an Extension of the Bayesian Inverse Approach to the Gaussian Mixture Model,, Journal of the Optical Society of America A, Vol. 29, pp. 2181–2189 (2012),
S. Peyvandi, S.H. Amirshahi, J. Hernández-Andrés, J.L Nieves, J.Romero,
39
Influence of natural daylight on soil-color description: assessment using a color-appearance model, Soil Science Society of America Journal, vol. 75, 984-993 (2011), M. Sánchez-Marañón, P.A. García, R. Huertas, J. Hernández-Andrés and M. Melgosa
38
Illuminant spectrum estimation at a pixel, Journal of the Optical Society of America A, vol. 28, 696-703 (2011), S. Ratnasingam and J. Hernández-Andrés
37
Extending “color constancy” outside the visible region, Journal of the Optical Society of America A, vol. 28, 541-547 (2011), S. Ratnasingam, S. Collins, and J. Hernández-Andrés
<
36
Color changes in objects in natural scenes as a function of observation distance and weather conditions, Applied Optics, vol. 50, 112-120, (2011), J. Romero, R. Luzón-González, J.L. Nieves and J. Hernández-Andrés
35
Optimum sensors for colour constancy in scenes illuminated by daylight
Journal of the Optical Society of America A, vol. 27, 2198-2207 (2010), S. Ratnasingam, S. Collins, and J. Hernández-Andrés
34
Calibrating the elements of a multispectral imaging system,
Journal of the Imaging Science and Technology, vol. 53, 031102-1-031110-10, (2009), M.A. López-Álvarez, J. Hernández-Andrés, J. Romero, J. Campos and A. Pons
33
Fountain rainbows , Applied Optics, vol. 47, H220-H224, (2008), S.D. Gedzelman, J. Hernández-Andrés,
32
Quantifying the "milky sky" experiment, Applied Optics, vol. 47, H128-H132, (2008)
S.D. Gedzelman, M.A. López-Álvarez, J. Hernández-Andrés and R. Greenler
31
Retrieval of the optical depth by an all-sky CCD camera, , Applied Optics, vol. 47, H182-H189, (2008), F.J. Olmo, A. Cazorla, L. Alados-Arboledas, M.A. López-Álvarez, J. Hernández-Andrés and J.Romero
30
Using a trichromatic CCD camera for spectral skylight estimation,Applied Optics, vol. 47, H31-H38, (2008), M. A. López-Álvarez, J. Hernández-Andrés, J. Romero, F. J. Olmo, A. Cazorla and L. Alados-Arboledas.
29
Developing an optimum computer-designed multispectral system comprising a monochrome CCD camera and a liquid-crystal tunable filter, Applied Optics, vol. 47, 4381-4390 (2008), M.A. López-Álvarez, J. Hernández-Andrés, J. Romero
28
A simple experiment to distinguish between replicated and duplicated compact discs using Fraunhofer diffraction, American Journal of Physics, vol. 76, 1137-1140, (2008), J. Fernández-Dorado, J. Hernández-Andrés, E.M. Valero, J. L. Nieves and J. Romero
27
Sensor-response-ratio constancy under changes in natural and artificial illuminants
Color Research and Application, Vol. 32, 284-292 (2007), J. Romero, D. Partal, J.L. Nieves and J. Hernández-Andrés
26
Recovering fluorescent spectra with an RGB digital camera and color filters using different matrix factorizations, Applied Optics, Vol. 46, 4144-4154 (2007), J.L. Nieves, E.M. Valero, J. Hernández-Andrés and J. Romero
25
Selecting algorithms, sensors and linear bases for optimum spectral recovery of skylight,
Journal of the Optical Society of America A, vol. 24, 942-956 (2007), M.A. López-Álvarez, J.Hernández-Andrés, E.M. Valero, J. Romero
24
Spectral sensitivity of sensors for a color-image descriptor invariant to changes in daylight conditions, Color Research and Application, Vol. 31, N. 5, pp. 391-398, (2006), J. Romero, J.Hernández-Andrés, J.L. Nieves and E.M. Valero
23
Crepuscular and nocturnal illumination and its effects on color perception by the nocturnal hawkmoth Deilephila elpenor, The Journal of Experimental Biology, Vol. 209, N. 5, pp. 789-800, (2006), S. Johnsen, A. Kelber, E. Warrant, A.M. Sweeney, E.A. Widder, R.L. Lee, Jr., and J.Hernández-Andrés
22
Multispectral synthesis of daylight using a commercial digital CCD camera, Applied Optics, Vol. 44, N. 27, pp. 5696-5703, (2005), J. L. Nieves, E.M. Valero, S.M.C. Nascimento, J.Hernández-Andrés and J. Romero
21
Designing a practical system for spectral imaging of skylight,
Applied Optics, Vol. 44, N. 27, pp. 5688-5695, (2005), M.A. Lopez-Alvarez, J. Romero, R.L. Lee, Jr. and J.Hernández-Andrés
20
Colors of the daytime overcast sky, Applied Optics, Vol. 44, N. 27, pp. 5712-5722, (2005)
R.L. Lee, Jr. and J.Hernández-Andrés
19
Short-term variability of overcast brightness, Applied Optics, Vol. 44, N. 27, pp. 5704-5711, (2005), R.L. Lee, Jr. and J.Hernández-Andrés
18
Group theoretical structure of spectral spaces, J. Math. Imaging and Vision, Vol. 23, N. 3, pp. 297-313, (2005), R. Lenz, T.H. Bui, and J.Hernández-Andrés
17
Changes in contrast thresholds with mean luminance for chromatic and luminance gratings: transition from the DeVries-Rose to Weber regions revisited, Color Research and Application, Vol. 29, N. 3, pp. 177-182, (2004), E.M. Valero, J.L. Nieves, J.Hernández-Andrés, and J.A. García
16
Spectral-reflectance linear models for color pattern recognition,, Applied Optics, Vol. 43, N. 9, pp. 1880-1891, (2004), J.L. Nieves, J.Hernández-Andrés, E.M. Valero, and J. Romero
15
Spectral daylight recovery using only a few sensors, Journal of the Optical Society of America A, Vol. 21, N. 1, pp. 13-23, (2004), J.Hernández-Andrés, J.L. Nieves, E.M. Valero, and J. Romero
14
Virtual tunnels and green glass: the colors of common-mirrors, American Journal of Physics, Vol. 72, N.1, pp. 53-59, (2004), R.L. Lee, Jr. and J.Hernández-Andrés
13
Color-signal filtering in the Fourier-frequency domain, Journal of the Optical Society of America A, Vol. 20, N. 9, pp. 1714-1724, (2003), J. Romero, E. Valero, J.Hernández-Andrés, and J.L.Nieves
12
Colour appearance of surfaces as affected by different time-varying colour-adaptation sequences, Optical Review, Vol. 10, N. 4, pp. 221-230, (2003), J.L. Nieves, E.M. Valero, J.Hernández-Andrés, and J. Romero
11
Color coordinates and color appearance of objects with daylight changes,
Color Research and Application, Vol. 28, N. 1, pp. 25-35, (2003), J. Romero, J. Hernández-Andrés, J.L.Nieves and J.A. Garcia
10
Color and luminance asymmetries in the clear sky, Applied Optics, Vol. 42, N. 3, pp. 458-464, (2003), J.Hernández-Andrés, R.L. Lee, Jr. and J. Romero
9
Measuring and modeling twilight's purple light, Applied Optics, Vol. 42, N. 3, pp. 445-457, (2003), R.L. Lee, Jr. and J.Hernández-Andrés.
8
Spectral-reflectance function recovery for improved colour-constancy experiments,
Displays, Vol. 23, N. 5, pp. 213-222, (2002), J.L. Nieves, F. Pérez-Ocón, J.Hernández-Andrés and J. Romero
7
Fizeau fringes at home, American Journal of Physics, Vol. 70, N. 7, pp. 684-688, (2002)
J.Hernández-Andrés, E. Valero, J.L.Nieves and J. Romero
6
Color and spectral analysis of daylight in southern Europe, Journal of the Optical Society of America A, Vol. 18, N. 6, pp. 1325-1335, (2001), J.Hernández-Andrés, J. Romero, J.L. Nieves and R.L. Lee, Jr.
5
Colorimetric and spectroradiometric characteristics of narrow-field-of-view clear fisheyeskylight in Granada, Spain, Journal of the Optical Society of America A, Vol. 18, N. 2, pp. 412-420, (2001), J.Hernández-Andrés, J. Romero and R.L. Lee, Jr.
4
Calculating correlated color temperatures across the entire gamut of daylight and skylight chromaticities, Applied Optics, Vol. 38, N. 27, pp. 5703-5709, (1999), J.Hernández-Andrés, R.L. Lee, Jr., J. Romero
3
Linear bases for spectral reflectance functions of acrylic paints, Color Research and Application, Vol. 23, N. 1, pp. 39-45, (1998), A.García-Beltrán, J.L.Nieves, J.Hernández-Andrés, J.Romero
2
Testing linear models on spectral daylight measurements, , Applied Optics, Vol. 37, N. 6, pp. 971-977, (1998), J.Hernández-Andrés, J.Romero, A.García-Beltrán, J.L.Nieves
1
Linear bases for representation of natural and artificial illuminants, Journal of the Optical Society of America A, Vol. 14, N. 5, pp. 1007-1014, (1997), J. Romero, A. García-Beltrán, J. Hernández-Andrés
Papers in non-JRC journals
5 Exploring what the eye cannot see, Optics and Photonics News (OPN), vol. 20, n. 5, pp. 18-19 (2009), J. Hernández-Andrés, J.A. García and J.L. Nieves
4 An innovative Erasmus Mundus Master program in Color in Informatics and Media Technology, Journal sur l'enseignement des sciences et technologies de l'information et des systèmes (J3eA), vol. 10, pp. 1010 (2011), A. Trémeau, J. Hardeberg, J. Hernández-Andrés, J.L. Nieves, J. Parkkinen
3 ¿Fotografiamos el color tal y como lo percibimos?, Revista Eureka sobre Enseñanza y Divulgación de las Ciencias, vol. 7, pp. 137-141 (2010), J.L.Nieves, J.A. García, J. Hernández-Andrés, R. Huertas
2 Características colorimétricas de la luz-día, Ver y Oír, vol. 113, pp. 125-130 (1997), J. Hernández-Andrés, A. García-Beltrán
1 Luz-día: Composición y efectos de la radiación, Ver y Oír, vol. 106, pp. 335-342 (1996), J. Hernández-Andrés, J.L. Nieves
Books and chapters
11 El ojo humano (Capítulo de libro), CIENCIA CON LUZ PROPIA: APLICACIONES TECNOLÓGICAS DE LA LUZ (UNIDAD DIDÁCTICA), pp. 100-113, (2015), Edita: Fundación Española para la Ciencia y la Tecnología (FECYT), ISBN: 270-15-110-1, J. Hernández-Andrés
10 Adquisición, procesado y síntesis de imágenes en color e hiperespectrales (Capítulo), LIBRO HOMENAJE AL PROF. JUAN A. MORENTE, pp. 305-310, (2013), Edita: Universidad de Granada, ISBN: 978-84-338-5540-4, J. Romero, J.L. Nieves, J. Hernández-Andrés, E. Valero, R. Luzón, T. Eckhard, J. Ojeda, M.A. Martínez-Domingo y J. Song
9 La divulgación científica: algo más que la docencia y la investigación universitaria (Capítulo), LIBRO HOMENAJE AL PROF. JUAN A. MORENTE, pp. 175-181, (2013), Edita: Universidad de Granada, ISBN: 978-84-338-5540-4, J.A. García, F. Javier Perales, J. Romero, L. Gómez-Robledo, J.L. Nieves, J. Hernández-Andrés, R. Huertas, E. Valero
8 Adquisición de imágenes multiespectrales con un dispositivo basado en redes de difracción de Bragg y clasificación de materiales mediante fuzzy c-means modificado , CIENCIA Y TECNOLOGÍA DEL COLOR. SEMINARIO 2012 DE LA RED TEMÁTICA, pp. 43-50, (2012), Copicentro Granada SL, ISBN: 978-84-15536-60-4, A. Rodríguez, F.A. Navas, J.L. Nieves, E.M. Valero, E. Garrote, J. Hernández-Andrés, J. Romero
7 CIENCIA Y REALIDAD: DE LA PERCEPCIÓN AL CONOCIMIENTO, GUÍA DIDÁCTICA, (2009), Edita: Parque de las Ciencias de Granada, Gráficas Alhambra, ISBN: 978-84-935629-9-1, C. Sampedro, J.D. Jiménez, J. Hernández-Andrés, E.M. Valero, J.L. Nieves, J.A. García, J. Romero, R. Huertas
6 Color changes in a natural scene due to the interaction between the light and the atmosphere (Capítulo de libro), CIENCIA Y TECNOLOGÍA DEL COLOR. SEMINARIO 2009 DE LA RED TEMÁTICA, pp. 9-11, (2012), Edita: Copicentro Granada SL, ISBN: 978-84-92680-77-1, J. Romero, R. Luzón, J. Hernández-Andrés, J.L. Nieves
5 Factores de corrección en la calibración de una cámara CCD (Capítulo de libro), ALGUNAS CUESTIONES DE CIENCIA: LIBRO HOMENAJE AL PROFESOR MANUEL QUINTANILLA, pp. 327-336, (2007), Edita: Universidad de Zaragoza, ISBN: 978-84-7733-921-2, M.A. López-Álvarez,J. Hernández-Andrés, J. Campos, A. Pons, J.L. Nieves, E.M. Valero, C. Plata, J. Romero
4 Advances in the application of multispectral techniques for the estimation of spectral skylight (Capítulo de libro), CIENCIA Y TECNOLOGÍA DEL COLOR. SEMINARIO 2007 DE LA RED TEMÁTICA, pp. 9-12, (2007), Edita: Copicentro Granada SL, ISBN: 84-96856-31-3, M.A. López-Álvarez, J. Hernández-Andrés, J. Romero
3 PROCEEDINGS BOOKS OF THE 10TH CONGRESS OF THE INTERNATIONAL COLOUR ASSOCIATION, VOL 2 , (2005), Edita: Gráficas Alhambra SA, ISBN: 84-609-5164-2, J.L. Nieves, J. Hernández-Andrés
2 PROCEEDINGS BOOKS OF THE 10TH CONGRESS OF THE INTERNATIONAL COLOUR ASSOCIATION, VOL 1 , (2005), Edita: Gráficas Alhambra SA, ISBN: 84-609-5163-4, J.L. Nieves, J. Hernández-Andrés
1 INTRODUCCIÓN A LA TEORÍA DIFRACCIONAL DE LA FORMACIÓN DE IMÁGENES , (2002), Edita: Imprenta Enrique Reca, ISBN: 84-607-4970-3, J.L. Nieves, J.R. Jiménez, J. Hernández-Andrés
Patents
2 Dispositivo portátil para la autovisualización de células sanguíneas en la retina, Nº Patente: ES2331172, Fecha concesión: 26/01/2011, Entidad titular: Universidad de Granada, M.A. López-Álvarez, J. Hernández-Andrés, J.L. Nieves Gómez
1 Método Óptico y Aparato para la Detección de Copias Piratas de CDs , Nº Patente: ES2332393, Fecha concesión: 10/06/2010, Entidad titular: Universidad de Granada, J. Fernández Dorado, J. Hernández-Andrés, E. M. Valero, J.L. Nieves Gómez, J. Romero Mora
Papers in scientific conferences
88 Evaluación de las gafas EnChroma® y VariantorTM mediante tests de visión del color, XI CONGRESO NACIONAL DE COLOR, Ourense (2016), R. Huertas, E. Valero, A. Alizadeh, L. Gómez-Robledo, J. Hérnandez-Andrés, M. Melgosa, E.Hita
87 Natural scene under colorblindness simulator glasses and glasses for color-blind people to enhance color vision, 12TH INTERNATIONAL MEETING LIGHT AND COLOR IN NATURE, Granada (2016), R. Huertas, L. Gómez-Robledo, A. Alizadeh, E. Valero, J. Hérnandez-Andrés, R. Ghinea, E.Hita
86 A database of Multispectral High Dynamic Range Polarimetric VIS+NIR images of outdoor scenes, 12TH INTERNATIONAL MEETING LIGHT AND COLOR IN NATURE, Granada (2016), M.A. Martínez-Domingo, E.M. Valero, J. Hérnandez-Andrés
85 An inexpensive spectral sensor for MMPT in partial shade, 32nd EUROPEAN PV SOLAR ENERGY CONFERENCE, Munich (2016), M.A. López-Álvarezz, S. Collins, J. Hérnandez-Andrés
84 Adaptive registration of line-scan multi-spectral image data for non-flat scanning objects, COLOR AND IMAGING CONFERENCE (CIC 2015), Darmstadt (2015), T. Eckhard, J. Eckhard, E.M. Valero, J. Hérnandez-Andrés
83 HDR Imaging - Automatic Exposure Time Estimation. A Novel Approach, INTERNATIONAL COLOR ASSOCIATION CONGRESS (AIC), Tokyo (2015), M.A. Martínez-Domingo, E.M. Valero, J.Hernández-Andrés, J.Romero
82 How optical imaging benefits from human visual coding of the statistics of natural images: beyond spectral and color information, 23TH CONGRESS OF THE INTERNATIONAL COMMISSION FOR OPTICS (ICO-23), Santiago de Compostela (2014), J.L. Nieves, J.Hernández-Andrés, E.M. Valero, J.Romero
81 Improved spectral density measurement from estimated re ectance data with kernel ridge regression, INTERNATIONAL SYMPOSIUM ON MULTISPECTRAL COLOUR SCIENCE MCS 14 (PART OF THE INTERNATIONAL CONFERENCE ON IMAGE AND SIGNAL PROCESSING 2014), Cherbourg (2014), T. Eckhard, M. Klammer, E.M. Valero, J.Hernández-Andrés
80 Incorporating active-learning techniques into the photonics-related teaching in the Erasmus Mundus Master in “Color in Informatics and Media Technology", 12TH INTERNATIONAL CONFERENCE ON EDUCATION AND TRAINING IN OPTICS AND PHOTONICS (ETOP 2013), Oporto (2013), A.M. Pozo, M. Rubiño, J.Hernández-Andrés, J.L. Nieves
79 Testing the Recursive Rejection method for training set selection in spectral reflectance estimation: performance evaluation when few data are provided as input, MEETING OF THE AIC (INTERNATIONAL COLOR ASSOCIATION), Newcastle (2013), E.M. Valero, T. Eckhard, J.Hernández-Andrés, J. Romero
78 Frecuencias espaciales y captura de imágenes, X CONGRESO NACIONAL DE COLOR, Valencia (2013), J. Romero, J.L. Nieves, J.Hernández-Andrés, E.M. Valero
77 A comparative analysis of spectral estimation approaches applied to print inspection, 18TH WORKSHOP OF THE GERMAN COLOR GROUP, Darmstadt (2012), T. Eckhard, E. M. Valero, J.Hernández-Andrés
76 Good practices in the development of the Erasmus Mundus Master program in Color in Informatics and Media Technology, ICHE 2012: INTERNATIONAL CONFERENCE ON HIGHER EDUCATION, Paris (2012), J. Hardeberg, J. Hernández-Andrés, J. L. Nieves, M. Hauta-Kasari, J. Parkkinen and A. Trémeau
75 Estimación de reflectancias espectrales a partir de respuestas de sensores TFD, X REUNIÓN NACIONAL DE ÓPTICA, Zaragoza (2012), M.A. Martínez-Domingo, E. Valero, G. Langfelder, J. Hernández-Andrés
74 Spectral reflectance estimation from Transverse Field Detectors responses, 6TH EUROPEAN CONFERENCE ON COLOUR IN GRAPHICS, IMAGING AND VISION (CGIV-2012), Amsterdam (2012), M.A. Martínez-Domingo, E. Valero, J. Hernández-Andrés, G. Langfelder
73 Modified fuzzy c-means applied to a Bragg grating-based spectral imager for material clustering, ELECTRONIC IMAGING 2012, California (2012), A. Rodríguez, J. L. Nieves, E. Valero, E. Garrote, J. Hernández-Andrés, J. Romero
72 From color to spectral information: a round-trip ticket, 10TH EURO-AMERICAN WORKSHOP ON INFORMATION OPTICS (WIO), Benicassim (2011), J. Hernández-Andrés, J. L. Nieves, E. Valero, J. Romero
71 Evaluation and optimization of spectral estimation algorithms for printer inks, MEETING OF THE AIC (INTERNATIONAL COLOR ASSOCIATION), Zurich (2011), Y. Hu, J. Hernández-Andrés, J.L Nieves, E. Valero, J. Romero, M. Schnitzlein, D. Nowack
70 Influence of color scales and subjetive color impressions in the development of architectural projects, MEETING OF THE AIC (INTERNATIONAL COLOR ASSOCIATION), Zurich (2011), J.L Nieves, E.M. Valero, Y. Hu, J. Marina, J. Hernández-Andrés, E. Morón, J. Romero
69 Simulating Crepuscular Rays, 10TH INTERNATIONAL MEETING LIGHT AND COLOR IN NATURE, St. Mary's City (2010), S.D. Gedzelman, J. Hernández-Andrés, M. Vollmer
68 Color Degradation Of Objects Due To The Atmosphere, 10TH INTERNATIONAL MEETING LIGHT AND COLOR IN NATURE, St. Mary's City (2010), J. Hernández-Andrés, R. Luzón, J. L. Nieves, J. Romero
67 Viabilidad del uso de algoritmos de clustering en la recuperación espectral a partir de respuestas de un conjunto de sensores, IX CONGRESO NACIONAL DE COLOR, Alicante (2010), E. M. Valero, N. Lyubova, J.L. Nieves, J. Hernández-Andrés
66 Recovering normal vectors and albedo under uncontrolled illumination with and RGB digital camera, 5TH EUROPEAN CONFERENCE ON COLOUR IN GRAPHICS, IMAGE AND VISION (CGIV 2010), Joensuu (2010), C. Plata, J.L. Nieves, E. Valero, J. Hernández-Andrés, J. Romero
65 Estudio de la difracción por reflexión en superficies pseudo-periódicas y aplicación a la detección de discos ópticos originales, IX REUNIÓN NACIONAL DE ÓPTICA, Ourense (2009), J. Fernández-Dorado, J. Hernández-Andrés, J.L. Nieves, E.M. Valero, J. Romero
64 Divulgación de la óptica en contextos multidisciplinares, IX REUNIÓN NACIONAL DE ÓPTICA, Ourense (2009), J.A.García, J. Hernández-Andrés, J.L. Nieves, J. Romero, R. Huertas, L. Gómez, E.M. Valero, R. Roa, E. Hita
63 Red Temática de Investigación Cooperativa "Procesado de Imágenes y Señal Multidimensional (PRISMA)", IX REUNIÓN NACIONAL DE ÓPTICA, Ourense (2009), G. Cristobal, G. Bueno, E.Gil, J.L. Nieves, J. Hernández-Andrés
62 Influencia de la curtosis de muestras rugosas en la recuperación de albedo y normales con cámara RGB, IX REUNIÓN NACIONAL DE ÓPTICA, Ourense (2009), C. Plata, J.L. Nieves, J. Hernández-Andrés, J. Romero
61 Color changes in a natural scene due to the interaction between the light and the atmosphere, 11TH CONGRESS OF THE INTERNATIONAL COLOUR ASSOCIATION (AIC2009), Sydney (2009), J. Romero, R. Luzón, J. Hernández-Andrés, J.L. Nieves
60 A Method for Designing and Assessing Sensors for Chromaticity Constancy in High Dynamic Range Scenes, COLOR IMAGING CONFERENCE CIC17, Alburquerque (2009), S. Ratnasingam, S. Collins, J. Hernández-Andrés
59 Building an optimum computer-designed multispectral system for skylight acquisition, CGIV-08, 4TH EUROPEAN CONFERENCE ON COLOUR IN GRAPHICS, IMAGING AND VISION, Terrassa (2008), M.A. López-Álvarez, J. Hernández-Andrés, J. Romero
58 New sample election method for multispectral system color calibration, AIC INTERIM MEETING 2008, Stockholm (2008), M.A. López-Álvarez, J. Hernández-Andrés, J. Romero
57 Montaje para la didáctica de las interferencias: Franjas interferenciales en cuñas de aire, XXXI REUNIÓN BIENAL DE LA REAL SOCIEDAD ESPAÑOLA DE FÍSICA Y 17º ENCUENTRO IBÉRICO PARA LA ENSEÑANZA DE LA FÍSICA, Granada (2007), E.M. Valero, R. Huertas, C.M. Salas, J. Hernández-Andrés
56 Ondas: experiencias con cuerdas de guitarra, XXXI REUNIÓN BIENAL DE LA REAL SOCIEDAD ESPAÑOLA DE FÍSICA Y 17º ENCUENTRO IBÉRICO PARA LA ENSEÑANZA DE LA FÍSICA, Granada (2007), J.A. García, J. Hernández-Andrés, M.A. López-Álvarez, J.L. Nieves, J. Romero
55 Crepuscular and nocturnal illumination and its effects on color perception by the nocturnal kawkmoth Deilephila elpenor, 9TH INTERNATIONAL MEETING ON LIGHT AND COLOR IN NATURE, Montana (2007), S. Jonsen, A. Kelber, E. Warrant, A.M. Sweeney, E.A. Widder, R.L. Lee, Jr., J. Hernández-Andrés
54 Using all-sky imager to obtain aerosol and cloud optical properties, 9TH INTERNATIONAL MEETING ON LIGHT AND COLOR IN NATURE, Montana (2007), F.J. Olmo, A. Cazorla, L. Alados-Arboledas, M.A. López-Álvarez, J. Hernández-Andrés, J. Romero
53 Taking advantage of a trichromatic CCD digital camera for spectral estimation, 9TH INTERNATIONAL MEETING ON LIGHT AND COLOR IN NATURE, Montana (2007), M.A. López-Álvarez, J. Hernández-Andrés, J. Romero, F.J. Olmo, A. Cazorla, L. Alados-Arboledas
52 Variación del ruido con el tiempo de exposición en una CCD, VIII CONGRESO NACIONAL DEL COLOR, Madrid (2007), M.A.López-Álvarez, J. Hernández-Andrés, J.Campos, A.Pons, J. Romero
51 Elección de espectros de entrenamiento para el calibrado de un sistema multiespectral, VIII CONGRESO NACIONAL DEL COLOR, Madrid (2007), M.A.López-Álvarez, J. Hernández-Andrés, J. Romero
50 Diseño de un sistema multiespectral basado en filtro sintonizable, VIII CONGRESO NACIONAL DEL COLOR, Madrid (2007), M.A.López-Álvarez, J. Hernández-Andrés, J. Romero
49 Análisis y diseño de sistemas para la recuperación de luz-día y luz-cielo con técnicas multiespectrales, VIII REUNIÓN NACIONAL DE ÓPTICA, Alicante (2006), J.Romero, J.L. Nieves, J. Hernández-Andrés, E. Valero, M.A. López-Alvarez, C. Plata
48 Selección de filtros y algoritmos óptimos en el diseño de sistemas multiespectrales, VIII REUNIÓN NACIONAL DE ÓPTICA, Alicante (2006), M.A. López-Alvarez, J. Hernández-Andrés, J.Romero
47 Influence of the recovery method in the optimum sensors for spectral imaging of skylight, ELECTRONIC IMAGING CONFERENCE, San José (2006), M.A. López-Alvarez, J. Hernández-Andrés, J.L. Nieves, J.Romero
46 Spectral recovery of artificial illuminants using a CCD colour camera with Nonnegative Matrix Factorization and Independent Component Analysis, IS&T'S 3RD EUROPEAN CONFERENCE ON COLOUR IN GRAPHICS, IMAGING, AND VISION (CGIV'06), Leeds (2006), J.L. Nieves, E. Valero, J. Hernández-Andrés, J. Romero
45 Separating illuminant and surface reflectance spectra from filtered trichromatic camera measurements, IS&T'S 3RD EUROPEAN CONFERENCE ON COLOUR IN GRAPHICS, IMAGING, AND VISION (CGIV'06), Leeds (2006), M.A. López-Álvarez, E.M. Valero, J. Hernández-Andrés
44 Daylight and skylight spectral analysis and estimation, SEMINAR ON COLOR RESEARCH APPROACHES, AUTUMN SEMINAR OF THE PATTERN RECOGNITION SOCIETY OF FINLAND, Joensuu (2006), J. Hernández-Andrés
43 Identification of clouds and sky in digital images using a principal component analysis, 10TH CONGRESS OF THE INTERNATIONAL COLOR ASSOCIATION (AIC'05), Granada (2005), C. Plata, E.M. Valero, A. Cazorla, F.J. Olmo, L. Alados-Arboledas, J. Hernández-Andrés, J.L. Nieves
42 Colorimetric and spectral combined metric for the optmization of multispectral systems, 10TH CONGRESS OF THE INTERNATIONAL COLOR ASSOCIATION (AIC'05), Granada (2005), M.A. López-Álvarez, J. Hernández-Andrés, E.M. Valero, J.L. Nieves
41 Cone-signal ratio dependence on natural and artificial illuminants, 10TH CONGRESS OF THE INTERNATIONAL COLOR ASSOCIATION (AIC'05), Granada (2005), J. Romero, D. Partal, J. L. Nieves, J. Hernández-Andrés
40 Influence of daylight changes in colour coordinates of a Munsell Soil colour chart, 10TH CONGRESS OF THE INTERNATIONAL COLOR ASSOCIATION (AIC'05), Granada (2005), M. Sánchez-Marañón, M. Melgosa, R. Huertas, J. Hernández-Andrés, J. L. Nieves, J. A. García, J. Romero
39 Image quality evaluation for ICA-based compression of natural scenes, 10TH CONGRESS OF THE INTERNATIONAL COLOR ASSOCIATION (AIC'05), Granada (2005), E.M. Valero, J.L. Nieves, J. Hernández-Andrés, J. Romero
38 Optimal sensors for recovering skylight in the presence of noise, 10TH CONGRESS OF THE INTERNATIONAL COLOR ASSOCIATION (AIC'05), Granada (2005), M. A. López-Álvarez, J. Hernández-Andrés, R. L. Lee Jr., J. Romero
37 Spectral synthesis of daylight using a digital CCD camera, 10TH CONGRESS OF THE INTERNATIONAL COLOR ASSOCIATION (AIC'05), Granada (2005), J.L.Nieves, E.Valero, S.M.C.Nascimento, J.Hernández-Andrés, J. Romero
36 Time-Frequency Analysis for Multi-Channel Color Pattern Recognition, SECOND EUROPEAN CONFERENCE ON COLOR IN GRAPHICS, IMAGING AND VISION (CGIV04), Aachen (2004), R. Lenz, J.Hernández-Andrés
35 Independent component analysis with different daylight illuminants, SECOND EUROPEAN CONFERENCE ON COLOR IN GRAPHICS, IMAGING AND VISION (CGIV04), Aachen (2004), E.M. Valero, J. L. Nieves, J. Hernández-Andrés and J.Romero
34 Optical color pattern recognition based on linear models of surface and illuminant spectra, SECOND EUROPEAN CONFERENCE ON COLOR IN GRAPHICS, IMAGING AND VISION (CGIV04), Aachen (2004), J. L. Nieves, J. Hernández-Andrés, E.M. Valero, J.Romero
33 Optimal spectral sensitivities of a multispectral image acquisition system, SECOND EUROPEAN CONFERENCE ON COLOR IN GRAPHICS, IMAGING AND VISION (CGIV04), Aachen (2004), J. Hernández-Andrés, E. M. Valero, J. L. Nieves, J. Romero
32 Testing spectral sensitivity of sensors for color invariant at a pixel, SECOND EUROPEAN CONFERENCE ON COLOR IN GRAPHICS, IMAGING AND VISION (CGIV04), Aachen (2004), J. Romero, J. Hernández-Andrés, J. L. Nieves, E. Valero
31 Detección remota de luz-cielo con tres sensores, VII CONGRESO NACIONAL DE COLOR, Pamplona(2004), M.A. López-Álvarez, J.Hernández-Andrés, J.L.Nieves, J. Romero
30 Optimización de invariantes frente al cambio de iluminante, VII CONGRESO NACIONAL DE COLOR, Pamplona(2004), J. Romero, J. Hernández-Andrés, D. Partal, E.M. Valero
29 Uso de modelos lineales de representación de reflectancias e iluminantes para el reconocimiento de objetos policromáticos, VII CONGRESO NACIONAL DE COLOR, Pamplona(2004), C. Plata, J. L. Nieves, J. Hernández-Andrés, E.M. Valero
28 Atención visual selectiva con Gabor cromáticos: efectos de interferencia, VII CONGRESO NACIONAL DE COLOR, Pamplona(2004), E.M. Valero, J. L. Nieves, L. Chelazzi, J. Hernández-Andrés
27 Colors of clear and overcast skies, 8th TOPICAL MEETING IN METEOROLOGICAL OPTICS, Bad Honnef (2004), R.L. Lee, Jr., J. Hernández-Andrés
26 Temporal variability of overcast illuminances, 8th TOPICAL MEETING IN METEOROLOGICAL OPTICS, Bad Honnef (2004), R.L. Lee, Jr., J. Hernández-Andrés
25 Towards a skylight spectral remote sensing camera, 8th TOPICAL MEETING IN METEOROLOGICAL OPTICS, Bad Honnef (2004), J. Hernández-Andrés, M.A. López-Álvarez, R.L. Lee, Jr.
24 Looking for an invariant under daylight changes with L, M, S-type sensors, AIC INTERIM MEETING, Porto Alegre (2004), J.Romero, D. Partal, J.L. Nieves, J. Hernández-Andrés
23 One-parameter subgroups and the chromaticity properties of time-changing illumination spectra, COLOR IMAGING: PROCESSING, HARDCOPY, AND APPLICATIONS VIII, IS&T/SPIE, Santa Clara (2003), R. Lenz, T. H. Bui, J. Hernández-Andrés
22 Filtrado paso-banda en el dominio de las frecuencias cromáticas como método para distinguir cambios de iluminante de cambios de reflectancia, 7ª REUNIÓN NACIONAL DE ÓPTICA, Santander (2003), E.M. Valero, J.L. Nieves, J. Hernández Andrés, J. Romero.
21 Modelado lineal de reflectancias para el reconocimiento de objetos en color, 7ª REUNIÓN NACIONAL DE ÓPTICA, Santander (2003), J.L. Nieves, J. Hernández Andrés, E.M. Valero, J. Romero.
20 Reconstrucción espectral de luz-día con tres sensores, 7ª REUNIÓN NACIONAL DE ÓPTICA, Santander (2003), J. Hernández Andrés, J.L. Nieves, E.M. Valero, J. Romero.
19 Túneles infinitos y espejos verdes, 7ª REUNIÓN NACIONAL DE ÓPTICA, Santander (2003), J. Hernández Andrés, R.L. Lee, Jr.
18 Colorimetría, visión del color, reproducción y procesado de imágenes en color, 7ª REUNIÓN NACIONAL DE ÓPTICA, Santander (2003), J. Romero et al.
17 Variaciones del umbral de detección de redes cromáticas rojo-verde con el nivel de luminancia media, VI CONGRESO NACIONAL DE COLOR, Sevilla (2002), E.M.Valero, J.L.Nieves, J. Hernández Andrés, J.A.García, J. Romero
16 Franjas de Fizeau con un escáner, VI CONGRESO NACIONAL DE COLOR, Sevilla (2002), J. Hernández Andrés, E. Valero, J.L. Nieves, J. Romero
15 Asimetrías de color y luminancia en cielos despejados, VI CONGRESO NACIONAL DE COLOR, Sevilla (2002), J. Hernández Andrés, R.L. Lee, Jr., J. Romero
14 Loss of spectral information in the colour signals filtered by the human visual system, CGIV'2002: FIRST EUROPEAN CONFERENCE ON COLOUR IN GRAPHICS, IMAGING, AND VISION, Poitiers (2002), J. Romero, J.L. Nieves, E.M. Valero, J. Hernández Andrés, J.A. García
13 Influence of the mean luminance on the detection threshold for red-green chromatic gratings, 9th CONGRESS OF THE INTERNATIONAL COLOUR ASSOCIATION (AIC), Rochester (2001), J.L.Nieves, E.Valero, J. Hernández Andrés, J.A.García, J.Romero
12 Daylight spectral power distribution recovery through a linear model and few filters, 9th CONGRESS OF THE INTERNATIONAL COLOUR ASSOCIATION (AIC), Rochester (2001), J. Hernández Andrés, J.Romero, J.L. Nieves
11 Twilight’s purple light: New evidence on an old problem, 7th TOPICAL MEETING ON METEOROLOGICAL OPTICS, Boulder (2001), R.L. Lee, Jr., J. Hernández Andrés
10 Color asymmetries in narrow FOV clear-sky radiances, 7th TOPICAL MEETING ON METEOROLOGICAL OPTICS, Boulder (2001), J. Hernández Andrés, R.L. Lee, Jr., J. Romero
9 Color appearance maintenance with changes in daylight illuminants, AIC 2000 MEETING, Seoul (2000), J. Romero, J. Hernández Andrés, J.L. Nieves, J.A. García
8 El color del cielo despejado en Granada, 6ª REUNIÓN NACIONAL DE ÓPTICA, Medina del Campo (2000), J. Hernández Andrés, J. Romero, J.L. Nieves
7 Variaciones del umbral de detección de redes cromáticas rojo verde con el tamaño de campo, 6ª REUNIÓN NACIONAL DE ÓPTICA, Medina del Campo (2000), E. Valero, J.L. Nieves, J.A. García, J. Hernández Andrés
6 El color de la luz natural en Granada, V CONGRESO NACIONAL COLOR, Terrassa (1999), J. Hernández Andrés, J.L. Nieves, J. Romero
5 The colour of natural light in Granada (Spain), AIC 1999 MIDTERM MEETING, Warsaw (1999), J. Hernández Andrés, J. Romero
4 Determinación experimental de curvas de sensibilidad al contraste cromático para observadores normales y anómalos, IV CONGRESO NACIONAL COLOR, Jarandilla de la Vera (1997), J. Romero, E.M. Valero, J.A. García, J. Hernández Andrés
3 Colorimetría y modelos de visión del color, 5ª REUNIÓN NACIONAL DE ÓPTICA, Valencia (1997), E. Hita et al.
2 Filtros de banda estrecha en el análisis de color, 5ª REUNIÓN NACIONAL DE ÓPTICA, Valencia (1997), A. García-Beltrán, J. Hernández Andrés, J.L. Nieves, J. Romero
1
Spectral reflectance recovering through linear model and narrow band filters, OPTICAL SOCIETY OF AMERICA (OSA) ANNUAL MEETING, Portland (1995), A. García-Beltrán, J.L. Nieves, J. Hernández-Andrés, J. Romero
Databases
Granada daylight spectral database
The spectral daylight database (2600 daylight spectra) was measured for all sky states during a two year period at Granada, Spain. In the paper J. Hernández-Andrés, J. Romero, J.L. Nieves & R.L. Lee, Jr., "Color and spectral analysis of daylight in southern Europe", Journal of the Optical Society of America A, Vol. 18, N. 6, pp. 1325-1335, June 2001 we describe in detail the chromaticity coordinates, correlated color temperatures (CCT), luminous efficacies, and relative UV and IR contents of Granada daylight. Our principal-component analysis shows that Granada daylight spectra can be adequately represented by using six-dimensional linear models in the visible, whereas seven-dimensional models are required if we include the UV or near-IR. Yet on average only three-dimensional models are needed to reconstruct spectra that are colorimetrically indistinguishable from the original spectra.
IMPORTANT: If you use this data, you must cite the source publication in full: J. Hernández-Andrés, J. Romero, J.L. Nieves & R.L. Lee, Jr., "Color and spectral analysis of daylight in southern Europe", Journal of the Optical Society of America A, Vol. 18, N. 6, pp. 1325-1335, June 2001
Link to the Granada daylight spectral database: click here
Granada skylight spectral database
The spectral skylight database (over 1500 skylight spectra) was measured measured during a seven-month period in Granada, Spain. In the paper J. Hernández-Andrés, J. Romero& R.L. Lee, Jr., "Colorimetric and spectroradiometric characteristics of narrow-field-of-view clear skylight in Granada, Spain", Journal of the Optical Society of America A, Vol. 18, N. 2, pp. 412-420, Feb 2001 we use spectral radiances measured within 3° fields of view (FOV's) to define colorimetric characteristics along four sky meridians: the solar meridian and three meridians at azimuths of 45°, 90°, and 315° relative to it. The resulting clear-sky chromaticities in 44 different view directions (1) are close to but do not coincide with the CIE daylight locus, (2) form V-shaped meridional chromaticity curves along it (as expected from theory), and (3) have correlated color temperatures (CCT's) ranging from 3800 K to infinity K. We also routinely observe that sky color and luminance are asymmetric about the solar meridian, usually perceptibly so. A principal-components analysis shows that three vectors are required for accurate clear-sky colorimetry, whereas six are needed for spectral analyses.
IMPORTANT: If you use this data, you must cite the source publication in full: J. Hernández-Andrés, J. Romero& R.L. Lee, Jr., "Colorimetric and spectroradiometric characteristics of narrow-field-of-view clear skylight in Granada, Spain", Journal of the Optical Society of America A, Vol. 18, N. 2, pp. 412-420, Feb 2001
Link to the Granada skylight spectral database: click here
Daylight spectra generated with SBDART
The global radiation spectrum is affected by a wide range of atmospheric components, including solar geometry, aerosols, gases, cloud cover and surface reflectance properties which all modify the spectral radiation as it passes through the atmosphere and reaches ground level. With an aim of understanding the influence of atmospheric components and phases of daylight on colorimetric specifications of downward radiation, we incorporate a wide range of plausible atmospheric parameters into a radiative transfer code and generate a large set of illuminations which may commonly occur in nature. We investigate colorimetric extension of plausible daylight, sunlight and skylight illuminations and analyze atmospheric components which cause substantial variation in the color of natural illumination.
IMPORTANT: If you use this data, you must cite the source publication in full: Colorimetric analysis of outdoor illumination across varieties of atmospheric conditions, S. Peyvandi, J. Hernández-Andrés, F.J. Olmo, J.L. Nieves, J. Romero, Journal of the Optical Society of America A, vol. 33, n. 6, pp. 1049-1059 (2016)
You can download the data at:
click here
IMPORTANT: If you use this data, you must cite the source publication in full: J. Hernández-Andrés, J. Romero, J.L. Nieves & R.L. Lee, Jr., "Color and spectral analysis of daylight in southern Europe", Journal of the Optical Society of America A, Vol. 18, N. 6, pp. 1325-1335, June 2001
Link to the Granada daylight spectral database: click here
IMPORTANT: If you use this data, you must cite the source publication in full: J. Hernández-Andrés, J. Romero& R.L. Lee, Jr., "Colorimetric and spectroradiometric characteristics of narrow-field-of-view clear skylight in Granada, Spain", Journal of the Optical Society of America A, Vol. 18, N. 2, pp. 412-420, Feb 2001
Link to the Granada skylight spectral database: click here
IMPORTANT: If you use this data, you must cite the source publication in full: Colorimetric analysis of outdoor illumination across varieties of atmospheric conditions, S. Peyvandi, J. Hernández-Andrés, F.J. Olmo, J.L. Nieves, J. Romero, Journal of the Optical Society of America A, vol. 33, n. 6, pp. 1049-1059 (2016)
You can download the data at: click here
Postal address:
Javier Hernández Andrés
Departamento de Óptica
Edificio Mecenas
Facultad de Ciencias
Campus Fuentenueva
Granada - 18071
SPAIN
Javier Hernández Andrés
Departamento de Óptica
Edificio Mecenas
Facultad de Ciencias
Campus Fuentenueva
Granada - 18071
SPAIN