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10Â¥: Originally posted by string121 at 2012-12-01 15:53:34
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12Â¥2012-12-22 16:24:10
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skevin000

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I=imread(' bikes.bmp');
I=rgb2gray(I);
I=double(I);
u= imfilter(I, fspecial('average', 3), 'replicate');
k=I-u;
figure,imshow(k,[]);    % k is double, not uint8, because k may has some negative data

% or
% imin=min(k();
% imax=max(k();
% k = k-imin;            % transfer the negative data to positive
% k = k./(imax-imin);
% k = k.*255;
% k = uint8(k);
% figure,imshow(k);
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13Â¥2012-12-25 10:11:31
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