MATLAB: Vectorize operation on image processing

image processingvectorization

Hi! I want to vectorize the variable final on this code :
for i = 1:sz1
    for j = 1:sz2
        if (bw(i,j)==1) 
           final(i,j,1)=255;
           final(i,j,2)=0;
           final(i,j,3)=0;
       else
            final(i,j,1)=I(i,j,1);
           final(i,j,2)=I(i,j,2);
           final(i,j,3)=I(i,j,3);
        end
    end
end
bw : black and white array
I : the original image
final : the array i want to store the values
I want to vectorize it because i want to speed up my code.
Can enyone help?
thnks

Best Answer

solved it!
final=I;
final(bw==1)=255;
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