Here is another presentation I made a couple years ago for my class in Digital Image Processing. I presented on a very interesting concept called dithering. In this presentation, I discussed several methods of dithering (one of the more interesting methods being "error diffusion"). Check it out.
Dithering Presentation
Hopefully in the near future I will actually post my code for this project, so that people with interest in the topic can play around with the code. My matlab code had support for all the popular, well known, dithering algorithm out there, as well as some more interesting concepts such as image fusion via dithering.
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