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Djuned Fernando Djusdek edited this page Dec 6, 2015
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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 | % | 43% | 43% | 68% | % | % | % |
| asyoulik.txt | % | 39% | 40% | 65% | % | % | % |
| cp.html | % | 34% | 34% | 65% | % | % | % |
| fields.c | % | 36% | 36% | 69% | % | % | % |
| grammar.lsp | % | 39% | 39% | 65% | % | % | % |
| kennedy.xls | % | 57% | 54% | 78% | % | % | % |
| lcet10.txt | % | 42% | 42% | 70% | % | % | % |
| plrabn12.txt | % | 43% | 44% | 67% | % | % | % |
| ptt5 | % | 80% | 79% | 88% | % | % | % |
| sum | % | 33% | 32% | 35% | % | % | % |
| xargs.1 | % | 36% | 36% | 55% | % | % | % |
Compression ratio of DCT image compression.
| File | Compression ratio |
|---|---|
| bookshelf1.img | % |
| bookshelf2.img | % |
| earth.img | % |
| elif.img | % |
| omaha.img | % |
| sena.img | % |
| sensin.img | % |
| sinan.img | % |
Compression ration of speech compression method.
| File | Compression ratio |
|---|---|
| berk.raw | % |
| gabe.raw | % |
| pat1.raw | 1% |
| pat2.raw | 1% |
| testf.raw | 1% |
| testm.raw | 1% |
###Introduction to Data Compression e-book.
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 % |