title: Automatic image rotation based on a logo
body: <p>We're looking for a package to help identify and automatically rotate faxed TIFF images based on a  watermark or logo.  </p>
  
  <p>We use libtiff for rotation currently, but don't know of any other libraries or packages I can use for detecting this logo and determining how to rotate the images.</p>
  
  <p>I have done some basic work with OpenCV but I'm not sure that it is the right tool for this job.  I would prefer to use C/C++ but Java, Perl or PHP would be acceptable too.   </p>