Title :
Color constancy: a biological model and its application for still and video images
Author :
Semo, Sarit ; Spitzer, Hedva
Author_Institution :
Fac. of Eng., Tel Aviv Univ., Israel
Abstract :
A novel biological model for color constancy (CC) is presented. This is the first biological model that succeeds in achieving automatic color correction of real still and video images (registered patent). It is based on two chromatic adaptation mechanisms in retinal color-coded cells: local adaptation and remote chromatic adaptation. Our simulations calculate the perceived image in order to correct image colors (as is commonly required in cameras). The results indicate that the contribution of adaptation mechanisms to CC is significant, robust, and succeeded in performing color correction of still images and video sequences under single and multiple illumination conditions
Keywords :
image colour analysis; image motion analysis; image sequences; lighting; video signal processing; visual perception; adaptation mechanisms; automatic color correction; biological model; chromatic adaptation mechanisms; color constancy; image color correction; local adaptation; moving images; multiple illumination; perceived image; psychophysical phenomenon; remote chromatic adaptation; retinal color-coded cells; simulations; single illumination; still image sequences; video image sequences; Biological system modeling; Biomedical engineering; Cameras; Color; Humans; Lighting; Psychology; Radio frequency; Retina; Visual system;
Conference_Titel :
Electrical and electronic engineers in israel, 2000. the 21st ieee convention of the
Conference_Location :
Tel-Aviv
Print_ISBN :
0-7803-5842-2
DOI :
10.1109/EEEI.2000.924369
