A library that identifies similar images

Question

I want to determine how 2 images look like. Images can be scaled, cropped, etc. Therefore, a simple comparison of pixels will not work.

I looked around, and there are many scientific articles on this subject, but they do not release their code. So, did you know about the released library that can compare images (for Linux and Windows)?

Answer 1

I came across this fantastic list of computer vision software: http://www.cs.cmu.edu/~cil/v-source.html

And I decided to take a closer look at these 2 tools:

• http://libpuzzle.pureftpd.org/project/libpuzzle
• http://appsrv.cse.cuhk.edu.hk/~jkzhu/felib.html