Once I attempted to create a very efficient video compression tool without caring how lossy it was.<br/>
I didn't use any traditional picture compression technique such as DCT or movement detection but instead went for a very naive approach.<br/>
In short, every pixel is represented by one bit, defining if the colour is moving "closer" or "further" from a given colour taken from a predefined sequence that the codec knows.<br/>
Only a few pixels per "zone" are sampled on each picture and the decoded colours are blurred to prevent long-term artefacts to appear.<br/>
The final sequence of bits is then manipulated to make it easier to apply RLE compression on them.<br/>
Some versions of this algorithm were able to compress a typical full length movie into less than 50Mb, but many artefacts were appearing over time.<br/>
This <a href="swc01c02.avi">video</a> presents a compressed movie being uncompressed back to .avi with various versions and parameters of the algorithm<br/>
And <a href="odbmc.pde">here</a> is the last version of it (processing sketch, not an "actual" codec).<br/>
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