how to mask an image?
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I = imread('E:\M.E 3rd semester\project\coding\flower.jpg');
I = rgb2gray(I);
K = conv2(I,J,'same');
Warning: CONV2 on values of class UINT8 is obsolete. Use CONV2(DOUBLE(A),DOUBLE(B)) or CONV2(SINGLE(A),SINGLE(B)) instead.
Can anyone help to correct the error?