Archive for April 4th, 2009

Here’s a good project on Google Code to bookmark in case you ever need to do any image processing tasks with UIImage:

I’ve written a simple C++ class with an Objective-C wrapper that provides a set of common image processing tasks along with conversion to and from UIImage.

The code supports the following operations:

• Canny edge detection - http://en.wikipedia.org/wiki/Canny_edge_detection
• Histogram equalisation - http://en.wikipedia.org/wiki/Histogram_equalisation
• Skeletonisation - http://en.wikipedia.org/wiki/Topological_skeleton
• Thresholding, adaptive and global - http://en.wikipedia.org/wiki/Thresholding_(image_processing)
• Gaussian blur (used as a preprocessing step for canny edge detection) - http://en.wikipedia.org/wiki/Gaussian_blur
• Brightness normalisation - http://en.wikipedia.org/wiki/Normalization_(image_processing)
• Connected region extraction - http://en.wikipedia.org/wiki/Blob_extraction
• Resizing – uses interpolation

Beats writing all that of scratch, indeed!

h/t: iPhone Development!