I have build Opencv With TBB enabled. And used "detectMultiscale" and wrote a basic program to detect the face. I couldnt find any changes in processing time if there is a face in a frame. Also i noticed that the processing time has been reduced by two times if there is no face in a frame(empty).
1) How to improve the processing time now?
2) Is it worth to go for Intel IPP? What could be the actual benefit?
Can anyone give me an advice?