how to find and plot accuracy graph of face recognition system??

How i can find accuracy of a face recognition system..how i can test my code that how many it can detect..kindly mention the standard methods....i want to plot graph of accuracy ...if anyone have idea kindly mention it.....

Answer 1

[Image Analyst]

It's typically done by measuring the area under the ROC curves. http://en.wikipedia.org/wiki/ROC_curve

[azizullah khan]

Dear sir i have ORL database which contain 400 images...how i can find accuracy..how many images i have to test..if i test 10 images of my own choice then i have different accuracy... kindly elaborate it here how to test...i want accuracy vs threshold graph....