Updated Jan 20, 2012
– Latest version of Thumb Creator now uses bicubic resampling for higher quality.
Thumb Creator is a drag and drop tool that batch processes images. The tool can resize images, encode them into a different format, and even apply filters such as colour curves. The tool features a LUA API that allows you to write your own effects or animation sequences.
Here are some sample images generated from the tool:
Normal Image Resized
Image with Curves Applied
Image with Refraction
The download comes with several sample scripts.