3D Gamut Mapping by Comparison between Image and Device Gamut Description

摘要

3D I-D GMA (Image-to-Device Gamut Mapping Algorithm) is an ideal way to map the display image to the inside of printer gamut. A quick decision whether each pixel is located at inside of the device gamut or not, is necessary to execute 3D I-D GMA. In this paper, both 3D image and device gamut shells are shaped as polygon meshes in the segmented discrete polar angle (φ, θ) by extracting the most outside points from the random color distributions of source image. Gamut shell is described as the simple radial distances, r-image. The image and device gamut boundaries are quickly compared between polar angle segments. 3D I-D GMA has been executed by mapping the image color points on the corresponding polar segments.