Histogram of color image
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I made program to hide message inside image using LSB steganography. every things going ok but why I get the histogram of cover image equal the histogram of stego image? can anyone help please my code is:
subplot(4, 4, 1);
imshow(c);title(' Cover Image (Bablylon)', 'FontSize', fontSize);
subplot(4, 4, 2);
Red = c(:,:,1);
Green = c(:,:,2);
Blue = c(:,:,3);
%Get histValues for each channel
[yRed, x] = imhist(Red);
[yGreen, x] = imhist(Green);
[yBlue, x] = imhist(Blue);%Plot them together in one plot
plot(x, yRed, 'Red', x, yGreen, 'Green', x, yBlue, 'Blue');
title('Histogram of Cover image ', 'FontSize', fontSize);
subplot(4, 4, 3);
imshow(s);title(' Stego Image(Bablylon)', 'FontSize', fontSize);
subplot(4, 4, 4);
Red = s(:,:,1);
Green = s(:,:,2);
Blue = s(:,:,3);
%Get histValues for each channel
[yRed1, x1] = imhist(Red);
[yGreen1, x1] = imhist(Green);
[yBlue1, x1] = imhist(Blue);
%Plot them together in one plot
plot(x1, yRed1, 'Red', x1, yGreen1, 'Green', x1, yBlue1, 'Blue');
title('Histogram of Stego image ', 'FontSize', fontSize);
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