TY - CONF AU - Jordi Roca AU - Maria Vanrell AU - C. Alejandro Parraga A2 - CGIV PY - 2012// TI - What is constant in colour constancy? BT - 6th European Conference on Colour in Graphics, Imaging and Vision SP - 337 EP - 343 N2 - Color constancy refers to the ability of the human visual system to stabilizethe color appearance of surfaces under an illuminant change. In this work we studied how the interrelations among nine colors are perceived under illuminant changes, particularly whether they remain stable across 10 different conditions (5 illuminants and 2 backgrounds). To do so we have used a paradigm that measures several colors under an immersive state of adaptation. From our measures we defined a perceptual structure descriptor that is up to 87% stable over all conditions, suggesting that color category features could be used to predict color constancy. This is in agreement with previous results on the stability of border categories [1,2] and with computational color constancyalgorithms [3] for estimating the scene illuminant. SN - 9781622767014 UR - http://www.imaging.org/IST/store/epub.cfm? abstrid=45433 N1 - CIC ID - Jordi Roca2012 ER -