How do you detect the location of an image within a larger image? I have an unmodified copy of the image. This image is then changed to an arbitrary resolution and placed randomly within a much larger image which is of an arbitrary size. No other transformations are conducted on the resulting image. Python code would be ideal, and it would probably require [libgd](http://www.libgd.org/Binders). If you know of a good approach to this problem you'll get a +1.