CONSTRUCTION OF UNIFORM COLOR SPACE USING GEODESIC GRIDS

摘要

Construction of a uniform color space (UCS) is one of the most challenging task in color engineering and image processing. A major method until now is to find an appropriate map which deforms a color space into the UCS. This seemed very difficult since this map has to nniformize the target color space in both local and global sense. In this paper, we switch to a methodology in the opposite direction. We simly calculate the inverse image of the ttniformization map to obtain a geodesic grid as a "polar coordinate system" of UCS. Based on recent theoretical result on UCS, an efficient algorithm for both local and global UCS is obtained giving perceptive discriminative data in a color space.