MATLAB: Error on ind2rgb

Question

Greetings everyone.

[X, MAP] = imread('test.jpg');

RGB = ind2rgb(X,MAP);

LAB = rgb2lab(RGB);

Here I tried to convert from index to RGB image using 'ind2rgb' command, but the result is like this: Index exceeds matrix dimensions.

Error in ind2rgb (line 26) r = zeros(size(a)); r(:) = cm(a,1);

I already tried to looking for the solution on the internet, but I couldn't find it.

Hope someone who knew how to fix it, kindly give me a lead here.

Here I also attached the file that I used for this command.

Thank you before.

Answer 1

Try this:

[RGB, MAP] = imread('test.jpg'); 
[X,map] = rgb2ind(RGB,32) ;
RGB = ind2rgb(X,map);
LAB = rgb2lab(RGB);