• Gianni R@lemmy.ml
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    1 year ago

    Data compression. Something about “making less data out of … The same data” is really mind blowing, & the math is sick

    • Fallenwout@lemmy.world
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      1 year ago

      It is not that complicated, to make a simple example with strings: AAAABBBABABAB takes up 13 spaces, but write (compress) it like 4A3B3AB take up 6 spaces compressing it more than 50%.

      Now double it like AAAABBBABABABAAAABBBABABAB with 26 spaces and write it as 2(4A3B3AB) with 9 spaces it takes only 30% of the space.

      Compression algorithms just look for those repetitive spaces.

      Takes those letters and imagine them being colored pixels of a picture to compress a picture