RGB Histogram Sideview

Adds the RGB histogram values of each image column into one single image.

Superposition of column profiles of an image.

Example:
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I = imread('danaide.jpg');
I2 = improfileadd(I);
I3 = improfileadd(imrotate(I,-90));
I3 = imrotate(I3,-90);
figure
subplot(2,2,1), imshow(I)
title('Input image')
subplot(2,2,2), imshow(I2)
title('Superposition of column profiles')
subplot(2,2,3), imshow(I3)
title('Superposition of row profiles')