plz explain the code

img_clahe = zeros(size(img));
for color_idx = 1:3
    img_clahe(:,:,color_idx) = adapthisteq(img(:,:,color_idx));
end

[Guillaume]

You already asked then deleted this question.

I will ask the same question back: which part of the code can you not understand by looking it up in the documentation.

[zakir khan]

this function is clear but i have confusion here img_clahe(:,:,color_idx)

Answer 1

[Guillaume]

img_clahe(:,:,color_idx) corresponds to each colour channel of the image.

[Image Analyst]

You forgot to mention that the code is doing a really dumb, worthless thing, unless you want bizarre color artifacts.

Answer 2

[Steven Lord]

Based on the questions you've been asking it seems like you're new to MATLAB or it's been some time since you last used it. In either of those cases I recommend going through some of the tutorials that will teach you the basic functionality of MATLAB and/or Simulink (depending which tutorials you take.) There are interactive courses to take, documentation pages to read, and videos to watch all on that page.