Untitled

I = imread('cameraman.tif');
I = double(I);minI = min(I(:));
maxI = max(I(:));


newMin = 0;
newMax = 1550;

J = (I - minI) * ((newMax - newMin) / (maxI - minI)) + newMin;

J = uint8(J);


figure;
subplot(1, 2, 1), imshow(uint8(I)), title('Original Image');
subplot(1, 2, 2), imshow(J), title('Contrast Stretched Image');