Sjmarf@sh.itjust.works to Programmer Humor@programming.dev · 2 years agoLDACsh.itjust.worksimagemessage-square117linkfedilinkarrow-up1848arrow-down14
arrow-up1844arrow-down1imageLDACsh.itjust.worksSjmarf@sh.itjust.works to Programmer Humor@programming.dev · 2 years agomessage-square117linkfedilink
minus-squaremsfroh@lemmy.calinkfedilinkarrow-up49·2 years agoSo when you zip some files and then unzip them, some of the bytes are missing? Really?!
minus-squareAnUnusualRelic@lemmy.worldlinkfedilinkarrow-up11·2 years agoIt’s only the zeros, so you’re not really missing anything.
minus-squareKanda@reddthat.comlinkfedilinkarrow-up2arrow-down45·2 years agoIf nothing is lost, what did you compress away? Decompression is magic, I ain’t gotta explain shit
minus-squareKayana@ttrpg.networklinkfedilinkarrow-up23·2 years 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-up1·2 years agoNewer fractional arithmetic encoding can get crazy https://en.wikipedia.org/wiki/Asymmetric_numeral_systems
minus-squareSwedneck@discuss.tchncs.delinkfedilinkarrow-up19·2 years agoyou compressed away redundant data, 1111111000000000011111111 -> (1x7)(0x10)(1x8)
minus-squarephlegmy@sh.itjust.workslinkfedilinkarrow-up12·2 years agoKeep your magic ways to yourself, wizard
minus-squareenbipanic@lemmy.blahaj.zoneBannedlinkfedilinkEnglisharrow-up19·2 years 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
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
you compressed away redundant data, 1111111000000000011111111 -> (1x7)(0x10)(1x8)
Keep your magic ways to yourself, wizard
Some compression is lossy