So, I was making my diploma project and felt the need for some image processing algorithms. While there are libraries, none I found had a simple API, so here it goes, a fast and simple image processing library.
A bunch of functions that work mostly on 8-bit image channels, which means that main type is just (u8 *) or (b8 *) for grey and binary images respectively.
Functions were used in real-time processing, so they are optimized for speed.

Included are:

• segmentation (4 and 8-connected)
• flood fill
• filling object holes
• downscaling and upscaling (with linear interpolation) by an integer factor
• generic implementations of dilate and erode (+image open and close)
• colorspace conversions: HSV<->RGB, YRG<->RGB
• convolutions with roberts and 2x2 low-pass filters
• common binary image operations

the files.
API.

I probably won't make any more releases, so consider this code orphaned. If you e-mail me, I would probably help you add something simple, fix some bug, explain what I meant somewhere. It's BSD license, so you can do with it almost whatever you want.

You can contact me at: domen@coderock.org