Some more for your Hunger - I suppose

Now let's do some more. On my last post I've given a program to control contrast, Let's do Auto-Contrast now.

autocontrast.m

So, I think what is meant by Auto-contrast by doing some changes in the above program.
Let's try Modified-Auto-Contrast.

modautocontrast.m

The last for this post will  be Alpha-blending..

alphablend.m