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Highlights from
Image Enhancement

from Image Enhancement by Madhu S. Nair
Image Enhancement Range Compression Skewing slicing low pass high pass filter threshold digital nega

digitneg(x) 
%Question No:3
%DIGITAL NEGATIVE

function digitneg(x)
f=imread(x);
L=max(max(f));
g=L-f;
imshow(f), figure, imshow(g);
end

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