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Compression project
(most info is in Russian)
>> About
In English: Video >> Public filters | Com. filters | Video Codecs Comparisons | Our Video Codecs | Video Quality Metrics || New: Compression Catalog! Personal (English) >> V.Yoockin | A.Ratushnyak In Russian: "Compression Methods" book | Arctest | Download | FIDO | Forum | Links |
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Compressors Comparison Test 6.6 (November 2003)
by Yoockin Vadim
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| RKC 1.02 | PPMZ, ROLZ, filters |
| Slim 18 | PPM*, filters |
| Durilca & Durilca light 0.3 | PPMII, filters |
| Epm 9 | PPMII, filters |
| Ctx 0.75b1 | PPMII, filters |
| 7Zip 3.11 | LZ+Ari, PPMII, filters |
| Paq3, Paq3n, Paq4 | CM |
| Bee 0.77 | CM |
| PPMy 9a9, Ash02 | CM |
| UHBC 1.0 | BWT + WFC,AFWC,direct coding |
| GRZip II 0.21 | BWT,ST4 + MTF,WFC |
| GCA 0.9k | BWT + direct coding |
| Test file | sorted by size | sorted by rating | Test file size (bytes) | Download file |
| English text file condoyle.txt | [view] | [view] | 2,042,760 |
737 kb |
| Russian text file stand.txt | [view] | [view] | 1,639,139 |
662 kb |
| Tared sources (Watcom C 10.0 examples) | [view] | [view] | 1,890,501 |
379 kb |
| EXE - file (Watcom C 10.0 compiler Wcc386.exe) | [view] | [view] | 536,624 |
306 kb |
| WinWord file Fileware.doc | [view] | [view] | 427,520 |
122 kb |
| Excel - file samples.xls | [view] | [view] | 445,440 |
144 kb |
| Dictionary telephone base file | [view] | [view] | 627,761 |
200 kb |
| Binary OS2.INI file | [view] | [view] | 594,821 |
117 kb |
YBS (blocksorting compressor)
YBS is a high-performance archiver based on Burrows-Wheeler Transform and distance coding modelling. It's quite fast even on skew data and achives high compression ratio.22.09.2002: version 0.03f. I remember my compressor :)
- fixed bug appearing while compressing with maximum block size 16Mb (thanks to Sebastian and Szymon).
- compression ratio is slightly improved
25.09.2000: version 0.03e
- fixed DJGPP 2.01 memory allocation bug in DOS version
- improved sorting of files like kennedy.xls
Thanks to
Edgar Binder - for describing me distance coding algorithm,
Szymon Grabowski - for text tricks (I don't implemented yet :) and testing,
Aleksandr Ratushnyak, Dmitry Shkarin, Eugene Shelwien, Sebastian Deorowicz, Vladimir Trutnev
- for testing.
I'll be appreciative for suggestions and bug reports.
e-mail to yoockinv@mtu-net.ru
Links
Address and an author | Description |
| http://www.data-compression.info
Juergen Abel | It is a steadly growing data compresion resource. And it also contains a very interesting BWT-compressor ABC. |
| http://www.mathematik.uni-bielefeld.de/~bernhard
Bernhard Balkenhol | A several interesting papers about Burrows-Wheeler Transform. |
| http://sun.iinf.polsl.gliwice.pl/~sdeor
Sebastian Deorowicz | A new compression corpus, the papers describing WFC (Weigthed Frequency Count) and other algorithms related to BWT. |
| http://www.cs.auckland.ac.nz/~peter-f
Peter Fenwick | A classical papers devoted to BWT compression research. |
| http://www.datacompression.info
Mark Nelson | A powerful data compression site. A lot of usefull compression pointers. |
| Last updated: 29-October-2003 |
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Project updated by
Server Team and MSU Video Group
Project sponsored by YUVsoft Corp.
Project supported by MSU Graphics & Media Lab
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Send your comments to
compression_##_graphicon.ru © Dr. D.Vatolin, Dr. M.Smirnov, A.Ratushnyak, V.Yoockin, content, 2001-2008 © A.Andreev, pictures, 2002
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