FernandoUnix's profile - activity

I am studying the algorithm viola-jones 2001 for face detection, I understand that the image Integral was used to make the sums of the pixels within the Haar-like, in this way making the subtraction of all white pixels by the sums of all black pixels, is it?

i have this line in facial detecction

        rectangle(frame, faces[i], CV_RGB(0, 255, 0), 2);

how can draw a rectangle equals in this image