How I can compare webcam input with existing images in a folder to recognize the gesture?

I have saved gestures in a folder and have prepare a code to read all that and then converted into binary for comparison and know further that I am in the right direction or not?

Answer 1

[Image Analyst]

If your algorithm is accurate, the ROC curve will be well above the 45 degree line. See http://en.wikipedia.org/wiki/Receiver_operating_characteristic. The ROC curve is a plot of true positive rate vs. false positive rate. The more accurate your code is in predicting the "true" gesture, the more your ROC curve will look like an upside down "L" shape (or capital Gamma shape).

[Sadiq Shah]

Thanks alot.... I am trying using this