Method and apparatus for color gamut mapping

摘要: Colorimetric values such as L*a*b* are input from an section to a color gamut mapping portion. A filtering process is performed on image of the difference between sent by and obtained result bi-directional conversion at converter section, controlled so satisfy requirement minimizing evaluation function which defined sum square norm filtered whole value performing thresholding in each pixel images before after output extracting for whole. Device satisfying predetermined conditions first neural network section.