[For 1.6] Image Filter GD

[mtjo]

Image Filter GD is a set of image effects filters that can be applied to a linked image using a MyCode tag. The applied effects retain transparency for most transparent GIF and PNG images.

Filters:

• brighten: Lightens a darker image.
  
• brush: Adds a slight dabbed, brushed effect to an image.
  
• darken: Darkens an overly bright image.
  
• edgedetect: Highlights borders between colors on an image. Similar to emboss.
  
• emboss: Adds a stamped metal effect to an image.
  
• flip: Flips an image vertically.
  
• grayscale: Converts color image to black & white.
  
• mirror: Produces a mirrored reflection of an image.
  
• negative: Produces a photo negative of an image.
  
• pixelate: Pixilates an image.
  
• sephia: Adds an aged photo effect to an image.
  
• sharpen: Sharpens a blurred image.
  
• sketch: Adds a sketched, comic book effect to an image.
  
• smooth: Slightly blurs an overly sharpened image.
  

Restrictions:

• Only supports GIF, PNG and JPG/JPEG images.
  
• If using the Image Resizer & Optimizer GD plugin, you must set the Overide dynamic resizing and optimization to On. I am working on a fix for this.
  
• Animated GIF images only have the first frame processed. Therefore, they are flattened to a static image.
  

Requirements:

• PHP 5.4+ with bundled GD
  
• fopen wrappers enabled in php.ini
  

Installation:

1. Unpack the Image Filter GD zip file and upload imagefilter_gd.php and the imagefilterGD folder to the inc/plugins directory.
2. Go to your Admin Plugins Manager and activate Image Filter with GD.
3. Go to your Admin MyCode Manager and create a new MyCode tag. Give it a title and description.
4. Enter the following as the Regular Expression:

\[img_filter=(.*?)\](.*?)\[/img_filter\]

5. Enter the following as the Replacement:

<img src="http://myboard.com/path/to/inc/plugins/imagefilterGD/image_filter.php?filename_gd=$2&filter_gd=$1&" alt="$2" title="$2" />

6. Enable the MyCode tag. This plugin is has no settings and is enabled/disabled via the MyCode manager.

Example MyCode tag:

[img_filter=pixelate]http://mysite.com/path/to/image.png[/img_filter]

Download:

http://mods.mybb.com/view/image-filter-gd

Sample images: