A Top Down Description of S-CIELAB and CIEDE2000

摘要

Recent work in color difference has led tothe recommendation of CIEDE2000 for use as an industrial color difference equation.While CIEDE2000 was designed for predicting the visual difference for large isolated patches,it is often desired to determine te perceived difference of color images.The CIE TC8-02 has been formed to examine these differences.This paper presents an overview of spatial filtering combined with CIEDE2000,to assist TC8-02 in the evaluation and implementationof an image color difference metric.Based on the S-CIELAB spatial extension,the objective is to provide a single reference for researchers desiring to utilize this techniques.A general overview of how S-CIELAB fnctions,as well as a comparison between spatial domain and frequency domain filtering it provided.a reference comparison between three CIE recommended color differnece formulae is also provided.