Create multiple aspect ratio thumbnails image_lib extension

[eluser]JoostV[/eluser]
I created an image_lib extension for a video tutorial on Codeigniter.tv: Create multiple aspect ratio thumbnails

It creates an X number of image thumbnails, all in different sizes and aspect ratios, nicely cropped from the center.

Link to the source code (Github) is under the video. Explanation is in the video itself.