I am working on signature verification system, i want to preprocess the scanned signature images, i have created following function, tell me it is useful or not?

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Regina N
Regina N 2019-1-7
function preprocessed
I=imread('image');
imshow(I)
I2=rgb2gray(I);
figure,imshow(I2)
I3=im2bw(I2);
figure,imshow(I3)
I4=medfilt2(I3);
figure,imshow(I4)
imwrite(I4,fullfile('path','image name'));
end

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