title: SURF/SIFT type image pattern matching library in PHP
body: <p>i wanna know if there is some SURF library that is written in PHP available? From little findings that i did till now surf libraries are either in C++/C#, if some link to similar technologies that are built in PHP if provided it will be appreciated. I googled my way for some builtin features, the only thing that was close enough was Image Magick. But from comments it looks like pattern matching cannot be done in it.</p>
  
  <p>Let me re define my self i just dont want to compare 2 images , lets say there is a Google logo with in an image, and there is an image of Google Logo as a separate image what i want to search if there is some image where Google's logo/image is reproduced.</p>