Sjmarf@sh.itjust.works to Programmer Humor@programming.dev · 3 days agoLDACsh.itjust.worksexternal-linkmessage-square115fedilinkarrow-up1818arrow-down13
arrow-up1815arrow-down1external-linkLDACsh.itjust.worksSjmarf@sh.itjust.works to Programmer Humor@programming.dev · 3 days agomessage-square115fedilink
minus-squaremsfroh@lemmy.calinkfedilinkarrow-up46·2 days agoSo when you zip some files and then unzip them, some of the bytes are missing? Really?!
minus-squareAnUnusualRelic@lemmy.worldlinkfedilinkarrow-up9·2 days agoIt’s only the zeros, so you’re not really missing anything.
minus-squareKanda@reddthat.comlinkfedilinkarrow-up2arrow-down44·2 days agoIf nothing is lost, what did you compress away? Decompression is magic, I ain’t gotta explain shit
minus-squareSwedneck@discuss.tchncs.delinkfedilinkarrow-up17·edit-22 days agoyou compressed away redundant data, 1111111000000000011111111 -> (1x7)(0x10)(1x8)
minus-squarephlegmy@sh.itjust.workslinkfedilinkarrow-up13·2 days agoKeep your magic ways to yourself, wizard
minus-squareKayana@ttrpg.networklinkfedilinkarrow-up22·2 days agoIf you want the magic explained, here’s a start: https://en.wikipedia.org/wiki/Lempel%E2%80%93Ziv%E2%80%93Welch
minus-squareNatanael@slrpnk.netlinkfedilinkarrow-up1·1 day agoNewer fractional arithmetic encoding can get crazy https://en.wikipedia.org/wiki/Asymmetric_numeral_systems
minus-squareenbipanic@lemmy.blahaj.zonelinkfedilinkEnglisharrow-up17·2 days agoSome compression is lossy
Compression is lossy.
So when you zip some files and then unzip them, some of the bytes are missing? Really?!
It’s only the zeros, so you’re not really missing anything.
If nothing is lost, what did you compress away? Decompression is magic, I ain’t gotta explain shit
you compressed away redundant data, 1111111000000000011111111 -> (1x7)(0x10)(1x8)
Keep your magic ways to yourself, wizard
If you want the magic explained, here’s a start: https://en.wikipedia.org/wiki/Lempel%E2%80%93Ziv%E2%80%93Welch
Newer fractional arithmetic encoding can get crazy
https://en.wikipedia.org/wiki/Asymmetric_numeral_systems
Some compression is lossy