Results 1 to 6 of 6

Thread: Lossless compression

  1. #1
    Member
    Join Date
    May 2019
    Location
    Malaysia
    Posts
    43
    Thanks
    8
    Thanked 0 Times in 0 Posts

    Lossless compression

    Why most people think lossless compression cant compress big data to smaller?

  2. #2
    Administrator Shelwien's Avatar
    Join Date
    May 2008
    Location
    Kharkov, Ukraine
    Posts
    3,909
    Thanks
    291
    Thanked 1,271 Times in 718 Posts
    Its only possible to compress data with known patterns.
    To make it possible to never expand any data with compression algorithms (while still compressing some),
    it would be necessary that 50% or more of all possible files would be compressible.
    But the actual share of compressible files is closer to 1/N for files of N bits, so compression algorithms
    would always have to expand some files while compressing others.

  3. #3
    Member
    Join Date
    May 2019
    Location
    Malaysia
    Posts
    43
    Thanks
    8
    Thanked 0 Times in 0 Posts
    If I got another method to compress it.How can I show and prove it ?

  4. #4
    Member
    Join Date
    Sep 2018
    Location
    Philippines
    Posts
    96
    Thanks
    29
    Thanked 1 Time in 1 Post
    Quote Originally Posted by Obama View Post
    If I got another method to compress it.How can I show and prove it ?
    Write a working compressor/decompressor, then sell it. Those who want to take a peek of your compressor must allot essential good enough payment because they will surely learn from it a couple of compression tricks. I think if it is truly revolutionary algorithm, they must pay huge for it, they will buy it, i say in the hundreds of million$ because it is already worth it. It's time that tech giants recognize the true value of breakthrough compression algorithms.

    You cannot continue lurking in compression groups without having correctly implemented a few algorithms yourself. These threads and posts are mostly written by professional and experienced programmers, so coding is easy for them. In my experience, you must prove your compression ideas correct by actually writing a compression and decompression program. Otherwise you're dreaming, and it will destroy your life.

    Today's compression algorithms are mostly symbol or string-replacement algorithms. Your other method is different?
    Last edited by compgt; 27th December 2019 at 21:46.

  5. #5
    Member
    Join Date
    May 2019
    Location
    Malaysia
    Posts
    43
    Thanks
    8
    Thanked 0 Times in 0 Posts
    Quote Originally Posted by compgt View Post
    Write a working compressor/decompressor, then sell it. Those who want to take a peek of your compressor must allot essential good enough payment because they will surely learn from it a couple of compression tricks. I think if it is truly revolutionary algorithm, they must pay huge for it, they will buy it, i say in the hundreds of million$ because it is already worth it. It's time that tech giants recognize the true value of breakthrough compression algorithms.

    You cannot continue lurking in compression groups without having correctly implemented a few algorithms yourself. These threads and posts are mostly written by professional and experienced programmers, so coding is easy for them. In my experience, you must prove your compression ideas correct by actually writing a compression and decompression program. Otherwise you're dreaming, and it will destroy your life.

    Today's compression algorithms are mostly symbol or string-replacement algorithms. Your other method is different?

    Yes,it’s different method.Actually math can solve it and provide high compress rate.

  6. #6
    Administrator Shelwien's Avatar
    Join Date
    May 2008
    Location
    Kharkov, Ukraine
    Posts
    3,909
    Thanks
    291
    Thanked 1,271 Times in 718 Posts
    Math can also let you calculate the numbers of possible compressed and uncompressed files.

    I'd be moving this thread to "Random compression" soon, look for it there if it "disappears".

Similar Threads

  1. Lossless JPG Compression
    By brispuss in forum Data Compression
    Replies: 38
    Last Post: 25th December 2019, 10:36
  2. Lossless Photo Compression Benchmark
    By Alexander Rhatushnyak in forum Data Compression
    Replies: 55
    Last Post: 6th October 2019, 20:51
  3. Oodle Lossless Image compression
    By skal in forum Data Compression
    Replies: 5
    Last Post: 25th September 2018, 11:02
  4. .bik no lossless compression?
    By Tidro in forum Data Compression
    Replies: 2
    Last Post: 4th September 2013, 18:39
  5. lossless data compression
    By SLS in forum Data Compression
    Replies: 21
    Last Post: 15th March 2011, 11:35

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •