The image processing tutorials started off as a work of passion and interest in the field of image processing. Then I got a job in hard real-time OS and acoustics development, and work on this page has stagnated to a total halt. I’ll be revising the tutorials and will finally finish all the outstanding chapters. This had been on the back burner for some time, until I noticed references to it in answers on StackOverflow.com and thought it warranted finishing.