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by ska
4051 days ago
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Lots of compression techniques use variations of this idea. For example, all wavelet tree codecs (eg JPEG2000) effectively do this. As to why it wasn't done for JPEG, etc.? Mostly the cost of hardware implementations in compute and memory. Think of all the cheap cameras etc. that used JPEG, the 8x8 block coding and integer representation of the discrete cosine transform coding made this possible. |
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