matlab中RGB空间转化为LAB空间的颜色转换

I = imread('1.png');

transform_lab=makecform('srgb2lab');

transform_lab=applyform(I,transform_lab);

transform_lab=lab2double(transform_lab)

%显示lab颜色空间的三个分量

L=transform_lab(:,:,1);

a=transform_lab(:,:,2);

b=transform_lab(:,:,3)

imshow(transform_lab)