Slashdot Mirror


Breakthrough In JPEG Compression

Kris_J writes "The makers of the (classic) compression package Stuffit have written a program that can compress JPGs by roughly 30%. This isn't the raw image to JPG compression, this is lossless compression applied to the JPG file. Typical compression rates for JPGs are 2% to -1%. If you read the whitepaper (PDF), they are even proposing a new image format; StuffIt Image Format (SIF). Now I just need someone to write a SIF compressor for my old Kodak DC260."

4 of 648 comments (clear)

  1. Re:Roughly 25%, but who's counting? by Motherfucking+Shit · · Score: 4, Funny
    Dancin_Santa says:
    I just installed an 800Gb hard disk in my system.
    I always wondered how much space it took to keep track of who's been naughty and who's been nice...
    --
    "BSD: Free as in speech. Linux: Free as in beer. Windows 10: Free as in herpes." --Man On Pink Corner in #52607549.
  2. Re:Fractal image format by ID10T5 · · Score: 5, Funny
    I'm not sure how practical 100% reduction is, but if anyone is interested I have an extremely fast algorithm for doing it.

    The results can be seen by the /. logo I have reduced here:

  3. Re:What's the point? by Zhe+Mappel · · Score: 4, Funny
    The listed uses ( http://www.stuffit.com/imagecompression/ ) seem trivial at best.

    You're right. I read the list, reproduced below. Who'd want to:

    * Send more photos via email
    * Fit more on CDs, DVDs, and other backup media
    * Save time when sending pictures over the internet or across the network
    * Reduce bandwidth costs

    After all, electronic storage media is infinite, and bandwidth is free!
  4. Re:Fractal image format by plumby · · Score: 4, Funny

    100% compression of a file is easy. It's the decompression of that file into the original that's the tricky bit.