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Hold and Modify v6

Hold and Modify or HAM, is a compression alghoritm for images. Commodore Amiga 500 was a personal computer in '80s and today is just considered one of the most famous PCs ever. It let you see image in high definition thanks to 4096 available colors (4 bits for each RGB channel) but its memory was poor. So we needed to compress images to store lots of them preserving an high quality. HAM is a lossy compression alghoritm so some data is lost on the way. This version of HAM uses 6 bits: 2 bits control and 4 bits data. HAM is fast with bad hardwares but it's not the best compression alghoritm (more details -> https://en.wikipedia.org/wiki/Hold-And-Modify).

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Hold and Modify, a compression algorithm for images which is used by Commodore Amiga 500

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