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Lubna Nur Aini edited this page Dec 13, 2015 · 43 revisions

Welcome to the data-compression wiki!

Compression ratio of dataset from Canterbury dataset.

  • H: Huffman
  • AH: Adaptive Huffman
  • A: Arithmetic
  • An: Arithmetic_n
  • LZSS: Lempel Ziv Storer Szymanski
  • LZW: Lempel Ziv Welch
File H AH A An LZSS LZW12 LZW15v
alice29.txt 58% 43% 43% 68% 51% 52 % 59%
asyoulik.txt 61% 39% 40% 65% 48% 50 % 58%
cp.html 71% 34% 34% 65% 56% 51% 55%
fields.c 74% 36% 36% 69% 66% 53% 57%
grammar.lsp 92% 39% 39% 65% 59% 44% 52%
kennedy.xls 45% 57% 54% 78% 67% 60% 72%
lcet10.txt 59% 42% 42% 70% 53% 48% 59%
plrabn12.txt 57% 43% 44% 67% 44% 51% 56%
ptt5 21% 80% 79% 88% 79% 87% 88%
sum 70% 33% 32% 35% 53% 20% 48%
xargs.1 91% 36% 36% 55% 51% 37% 46%

Compression ratio of DCT image compression.

Input File Output File Input Bytes Output Bytes Compression Ratio
bookshelf1.img bookshelf1.img.out 65536 18597 72%
bookshelf2.img bookshelf2.img.out 65536 16452 75%
ccir_fields.y ccir_fields.y.out 349920 12510 97%
ccir_frame.y ccir_frame.y.out 349920 10378 98%
earth.img earth.img.out 65536 16743 75%
elif.img elif.img.out 65536 11596 83%
omaha.img omaha.img.out 65536 27325 59%
sena.img sena.img.out 65536 11554 83%
sensin.img sensin.img.out 65536 13731 80%
sinan.img sinan.img.out 65536 13634 80%

Compression ration of speech compression method.

File Raw Size Compressed Size Compression ratio
pat1.raw 144738 144731 1%
pat2.raw 58974 58967 1%
testf.raw 12372 12365 1%
testm.raw 8470 8463 1%

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Compression ratio of Uniform Quantization image compression.

File 1 2 3 4 5 6 7
bookshelf1.img 12.536621 % 25.036621 % 37.536621 % 50.036621 % 62.536621 % 75.036621 % 87.536621 %
bookshelf2.img 12.536621 % 25.036621 % 37.536621 % 50.036621 % 62.536621 % 75.036621 % 87.536621 %
earth.img 12.536621 % 25.036621 % 37.536621 % 50.036621 % 62.536621 % 75.036621 % 87.536621 %
elif.img 12.536621 % 25.036621 % 37.536621 % 50.036621 % 62.536621 % 75.036621 % 87.536621 %
omaha.img 12.536621 % 25.036621 % 37.536621 % 50.036621 % 62.536621 % 75.036621 % 87.536621 %
sena.img 12.536621 % 25.036621 % 37.536621 % 50.036621 % 62.536621 % 75.036621 % 87.536621 %
sensin.img 12.536621 % 25.036621 % 37.536621 % 50.036621 % 62.536621 % 75.036621 % 87.536621 %
sinan.img 12.536621 % 25.036621 % 37.536621 % 50.036621 % 62.536621 % 75.036621 % 87.536621 %

Peak Signal To Noise Ratio(PSNR) of Uniform Quantization image compression.

File 1 2 3 4 5 6 7
bookshelf1.img 15.724 db 22.210 db 29.258 db 35.104 db 40.732 db 46.381 db 51.149 db
bookshelf2.img 16.179 db 21.769 db 28.517 db 35.516 db 41.148 db 46.306 db 51.043 db
earth.img 14.108 db 19.915 db 25.955 db 31.933 db 37.722 db 43.816 db 49.660 db
elif.img 21.256 db 21.474 db 29.219 db 34.594 db 40.720 db 46.478 db 51.143 db
omaha.img 16.701 db 23.098 db 28.835 db 34.625 db 40.694 db 46.217 db 51.100 db
sena.img 18.617 db 21.506 db 28.394 db 35.001 db 40.780 db 46.460 db 51.134 db
sensin.img 17.529 db 22.378 db 28.599 db 34.758 db 40.726 db 46.396 db 51.047 db
sinan.img 16.885 db 22.356 db 28.933 db 34.956 db 40.708 db 46.410 db 51.084 db

Compression ration of CARMAN.

File Compression ratio Method
alice29.txt 51% LZSS
asyoulik.txt 47% LZSS
cp.html 55% LZSS
fields.c 65% LZSS
grammar.lsp 58% LZSS
kennedy.xls 67% LZSS
lcet10.txt 67% LZSS
plrabn12.txt 67% LZSS
ptt5 79% LZSS
sum 53% LZSS
xargs.1 50% LZSS
pat1.raw 2% LZSS
pat2.raw 0% Store
testf.raw 0% Store
testm.raw 0% Store
bookshelf1.img 9% LZSS
bookshelf2.img 20% LZSS
earth.img 42% LZSS
elif.img 27% LZSS
omaha.img 11% LZSS
sena.img 24% LZSS
sensin.img 8% LZSS
sinan.img 11% LZSS
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