American Sign Language Recognition (IA Project)
Algorithm :
Convex Hull approach to count number of fingers and contour matching techniques to find the best match.
Flow chart is included here : https://github.com/lifecodemohit/ASL_Recognition/blob/master/IA_Project/IAScreenshot%20(1).pdf
Reference : http://s-ln.in/2013/04/18/hand-tracking-and-gesture-detection-opencv/