TY - JOUR
T1 - Analysis of illumination correction error in camera color space
AU - Lee, Minji
AU - Lee, Byung Uk
N1 - Funding Information:
This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (NRF-2015R1D1A1A01057392).
Publisher Copyright:
© 2019, Society for Imaging Science and Technology.
PY - 2019/1/13
Y1 - 2019/1/13
N2 - Achieving color constancy is an important step to support visual tasks. In general, a linear transformation using a 3× 3 illuminant modeling matrix is applied in the RGB color space of a camera to achieve color balance. Most of the studies for color constancy adopt this linear model, but the relationship of illumination and the camera spectral sensitivity (CSS) is only partially understood. Therefore, in this paper, we analyze linear combination of the illumination spectrum and the CSS using hyperspectral data that have much more information than RGB. After estimating the illumination correction matrix we elucidate the accuracy dependence on illumination spectrum and the camera sensor response, which can be applied to CSS.
AB - Achieving color constancy is an important step to support visual tasks. In general, a linear transformation using a 3× 3 illuminant modeling matrix is applied in the RGB color space of a camera to achieve color balance. Most of the studies for color constancy adopt this linear model, but the relationship of illumination and the camera spectral sensitivity (CSS) is only partially understood. Therefore, in this paper, we analyze linear combination of the illumination spectrum and the CSS using hyperspectral data that have much more information than RGB. After estimating the illumination correction matrix we elucidate the accuracy dependence on illumination spectrum and the camera sensor response, which can be applied to CSS.
KW - Camera spectral sensitivity
KW - Color constancy
KW - Illuminant estimation
UR - http://www.scopus.com/inward/record.url?scp=85080043349&partnerID=8YFLogxK
U2 - 10.2352/ISSN.2470-1173.2019.14.COLOR-093
DO - 10.2352/ISSN.2470-1173.2019.14.COLOR-093
M3 - Conference article
AN - SCOPUS:85080043349
SN - 2470-1173
VL - 2019
JO - IS and T International Symposium on Electronic Imaging Science and Technology
JF - IS and T International Symposium on Electronic Imaging Science and Technology
IS - 14
M1 - COLOR-093
T2 - 24th Color Imaging: Displaying, Processing, Hardcopy, and Applications Conference, COLOR 2019
Y2 - 13 January 2019 through 17 January 2019
ER -