12 examples of using image filters in php
In mostly all cases a website use to store and share images and all these images are copied and edited on the fly by GDlib or ImageMagik. The wonderful Filter option is allowing to display on the fly an image with different settings for contrast or color. Is posible to obtain incredible result mixing different images on the fly
Fun with the PHP GD Library: Part 1
http://blog.themeforest.net/tutorials/fun-with-the-PHP-gd-library-part-1/
PHP Manipolazione immagini
http://codesnippet.biz/php-manipolazione-immagini/
Einführung in die gdLibrary (gdLib)
http://macx.de/essays/gdlib/bildfilter.html
PHP imagesharpen
http://maettig.com/?page=PHP/imagesharpen
PHP Image manipulation with GD2
http://solarisedesign.co.uk/blog/php-image-manipulation-with-gd2/
Unsharp Mask for PHP
http://vikjavev.no/computing/ump.php
Image Manipulation using PHP
http://www.nodstrum.com/2006/12/09/image-manipulation-using-php/
Image fun with PHP â?? part 2
http://www.phpied.com/image-fun-with-php-part-2/
Additional image filters for PHP
http://www.redmonkey.org/php/additional-imagefilters/
Using PHP's imagefileter() Function
http://www.sculch.com/articles/using-php-imagefilter-function/
Add Effects To Images Using Image Filters With PHP
http://www.talkincode.com/add-effects-to-images-using-image-filters-with-php-266.html
Simple Image manipulation class
http://www.talkphp.com/script-giveaway/3614-simple-image-manipulation-class-gd.html