ofPolyline lefteye, righteye, topmouth etc;
	ofCvColorImage testApply;
	unsigned char * pix = cam.getPixels();
        for(int i = 0;i<camWidth*camHeight;i++){
            int x = i % camWidth;
            int y = (i - x) / camWidth;
            if(lefteye.inside(x, y) ||
               righteye.inside(x, y) ||
               topmouth.inside(x, y) ||
               botmouth.inside(x, y) ||
               nosebridge.inside(x, y) ||
               nosebase.inside(x, y)){
                pix[i] = pix[i];
            }else{
                pix[i] = 255;
            }
        }
        testApply.setFromPixels(pix, camWidth, camHeight);