What is the best algorithm for extracting shape features from an object in a RGB image?

Matlab shape + texture feature extraction technique.

Answer 1

[Image Analyst]

The best one is the one that works for your images. There is no overall best algorithm for every image ever generated in the universe. http://www.mathworks.com/matlabcentral/answers/6200-tutorial-how-to-ask-a-question-on-answers-and-get-a-fast-answer