Face detection using PHP

We need to install Facedetection, OpenCV PHPextensions to use these functions to find the coordinates of the faces. Go through the following resouces for more information.
http://corpocrat.com/2009/08/18/automatic-face-detection-with-php-in-linux/
https://github.com/infusion/PHP-Facedetect/
http://www.xarg.org/project/php-facedetect/


You can detect face without any PHP extension using below Script:
http://devlup.com/programming/php/face-detection-using-php/1140/
http://www.emanueleferonato.com/2010/07/06/php-face-detection-class/


http://www.codediesel.com/algorithms/face-detection-in-images-using-php/


http://svay.com/blog/face-detection-in-pure-php-without-opencv/