title: Extracting Shape Context Descriptors to train SVM
body: <p>I am working on a project that deals with classifying images based only on the shape obtained (binary image) after background subtraction. I want to extract shape context descriptors from the two classes and train an SVM classifier.
  How can I extract shape context descriptors ? Please tell me if there is any implementation or implementation guide to extract shape context descriptors for training SVM.  </p>