MATLAB：将RGB图像转换为Lab颜色空间的算法

Question

如何在Matlab中将RGB图像转换为Lab颜色空间？

Answer 1

http://wildinformatics.blogspot.com/2010/10/rgb-to-lab-color-transformation-in.html

%load rgb image 
src = 'C:\rainbow.jpg'; 
rgbI = imread(src); 

%convert to lab 
labTransformation = makecform('srgb2lab'); 
labI = applycform(rgbI,labTransformation); 

%seperate l,a,b 
l = labI(:,:,1); 
a = labI(:,:,2); 
b = labI(:,:,3); 

figure, imshow(l) , title('l'); 
figure, imshow(a) , title('a'); 
figure, imshow(b) , title('b');