Snippets - GD
Grayscale image - Anthony 23/6/2008
Use a filter to change an image to grayscale. There are other filters check the link below. Note: needs php 5.
<?php$image = imagecreatefromjpeg( "input.jpg" );imagefilter( $image, IMG_FILTER_GRAYSCALE, $args );imagejpeg( $image, 'output.jpg' );imagedestroy( $image );?>