Question

I have a binary image which is the segmented form of another color image .

As you know , a binary image is 2-d but an rgb image is 3-d , how can i multiply them together ?

i tried this code which resulted in a strange pic

function  skinCrop(bwSkin,colorSkin)

for i = 1:size(colorSkin,1)
    for j = 1:size(colorSkin,1)
        if bwSkin(i,j) == 0
            colorSkin(i,j,:) = 0;
        end
    end
end
imshow(colorSkin);
end

The original image was

The resulting image was :

I expected it to be a hand against a dark background , so why do the right part appear that way ?

Answer 1

You are using the wrong dimension length for your second dimension:

for j = 1:size(colorSkin,1)

should be

for j = 1:size(colorSkin,2)