MATLAB: Remove column from image

Question

I need code for Remove columns from the image width having value = 0

Answer 1

If it is a 2D image (gray scale):

Img  = randi([0, 255], 640, 480, 'uint8');  % Example data
keep = all(Img, 1);
Img2 = Img(:, keep);

This removes all columns, which contain any 0. If you mean columns with only zeros:

keep = any(Img, 1);

Perhaps you have an RGB image:

rgb = rand(640, 480, 3);
V   = all(rgb, 3);  % Or ANY, see above.
keep = all(V, 1);
rgb2 = rgb(:, keep, :);