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Putu Adhi Purwanto edited this page Dec 7, 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 | 58% | 43% | 43% | 68% | 51% | 52 % | % |
| asyoulik.txt | 61% | 39% | 40% | 65% | 48% | 50 % | % |
| cp.html | 71% | 34% | 34% | 65% | 56% | 51% | % |
| fields.c | 74% | 36% | 36% | 69% | 66% | 53% | % |
| grammar.lsp | 92% | 39% | 39% | 65% | 59% | 44% | % |
| kennedy.xls | 45% | 57% | 54% | 78% | 67% | 60% | % |
| lcet10.txt | 59% | 42% | 42% | 70% | 53% | 48% | % |
| plrabn12.txt | 57% | 43% | 44% | 67% | 44% | 51% | % |
| ptt5 | 21% | 80% | 79% | 88% | 79% | 87% | % |
| sum | 70% | 33% | 32% | 35% | 53% | 20% | % |
| xargs.1 | 91% | 36% | 36% | 55% | 51% | 37% | % |
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 | 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 % |
Compression ration of CARMAN.
| File | Compression ratio | Method |
|---|---|---|
| alice29.txt | 51% | LZSS |
| grammar.lsp | 58% | LZSS |
| kennedy.xls | 67% | LZSS |
| ptt5 | 79% | LZSS |
| sum | 53% | LZSS |
| xargs.1 | 50% | LZSS |
| pat1.raw | 2% | LZSS |
| pat2.raw | 0% | Store |