Convert a color image between color representations. B = COLORSPACE(S,A) converts the color representation of image A where S is a string specifying the conversion. S tells the source and destination color spaces, S = dest<-src , or alte

％ function [L, a, b] = RGB2Lab(R, G, B) ％ RGB2Lab takes matrices corresponding to Red, Green, and Blue, and ％ transforms them into CIELab. This transform is based on ITU-R ％ Recommendation BT.709 using the D65 white point reference. ％ The e

For images with color, it seems obvious that an additional term must be added to consider the difference between the color of the background and the color of the target. In other words, if at present the contrast between the target and the background

Calculate color difference in CIELAB color space dE 94 and dEab 94