Less then 8 bit data ?
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Hello, im coding Shanoon fanoo algorith rn which compressed images by changing the code of most occuring bits to smaller codes, but the problem is matlab always makes them int8, while i need to make them smaller then that, what's a workaround ?
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Walter Roberson
2022-3-12
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The newest "bit-sliced" computer that I can find (one able to index down to single bits) was 1981. I seem to have a memory of one designed in roughly 1984-ish, but it would be a fair strain to remember any details.
Basically, what you are asking to do has not been supported on computers in decades.
What people do instead is one of:
- use byte arrays for all working calculations, and pack the bits into bytes when it comes time to write to file; Or
- pack multiple bits into a single byte (or word or long word) by keeping track of the relative position and using arithmetic operations. In MATLAB, you can use bitset() and bitget()
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