From: a.sabrin.ce@gmail.com   
      
   Hello!   
      
   I have doing project, and I have a problem.   
   I am working in pattern classification project to classify circle ,   
   rectangle and triangle, and I use some feature such as compactness,   
   roundness, eccentricity and no. of point of convex hull , but it not   
   give me needed accuracy, so I looking for another features.   
   Can somebody point me to some feature I can extract  it?   
      
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