This forum is disabled, please visit https://forum.opencv.org
 | 1 | initial version |
There's no needed for grayscale images. Only thing you needed to do is, be sure "haarcascade_frontalface_alt2.xml" file nearby your source code directory. If not write the whole path to it.
Ps.: you may cheat from .../opencv-(version)/data/haarcascades/haarcascade_frontalface_alt2.xml
