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https://github.com/0xd34df00d/hsqoi
Haskell implementation of the QOI image format
https://github.com/0xd34df00d/hsqoi
compression haskell image-compression lossless-image-compression
Last synced: about 1 month ago
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Haskell implementation of the QOI image format
- Host: GitHub
- URL: https://github.com/0xd34df00d/hsqoi
- Owner: 0xd34df00d
- License: bsd-3-clause
- Created: 2021-12-04T18:43:03.000Z (about 3 years ago)
- Default Branch: master
- Last Pushed: 2023-06-30T22:25:50.000Z (over 1 year ago)
- Last Synced: 2024-12-01T13:26:35.454Z (about 1 month ago)
- Topics: compression, haskell, image-compression, lossless-image-compression
- Language: Haskell
- Homepage:
- Size: 66.4 KB
- Stars: 15
- Watchers: 3
- Forks: 2
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- Changelog: ChangeLog.md
- License: LICENSE
Awesome Lists containing this project
README
# hsqoi
Haskell implementatin of the [QOI image format](https://phoboslab.org/log/2021/11/qoi-fast-lossless-image-compression).
## Benchmarks
The baseline is the [reference C code](https://github.com/phoboslab/qoi.git) @ [`e9069e`](https://github.com/phoboslab/qoi/commit/e9069e11a43d779b418679c7a50b2ec14f652085).
Taking a single big `.png` photo (5616×3744), with either 3 (RGB) or 4 (RGBA) channels
and taking a minimum of 5 runs gives, on Core i7 3930k @ 4.0 GHz:
| Implementation | Decoding, ms | , % of best C | Encoding, ms | , % of best C |
|----------------------------------|--------------|---------------|--------------|---------------|
| C, gcc 11, `-O3 -march=native` | 228 | 117% | 264 | 102% |
| C, gcc 11, `-O3` | 230 | 118% | 260 | 100% |
| C, clang 13, `-O3 -march=native` | 211 | 108% | 356 | 137% |
| C, clang 13, `-O3` | 195 | 100% | 341 | 131% |
| Haskell, 3-channel | 172 | 88% | 226 | 87% |
| Haskell, 4-channel | 187 | 96% | 209 | 80% |
Similarly for a [5120x2880 artwork](https://raw.githubusercontent.com/KDE/breeze/6d4fe7781790c69758be380324262261699894f7/wallpapers/Next/contents/images/5120x2880.png):
| Implementation | Decoding, ms | , % of best C | Encoding, ms | , % of best C |
|----------------------------------|--------------|---------------|--------------|---------------|
| C, gcc 11, `-O3 -march=native` | 90 | 130% | 73 | 102% |
| C, gcc 11, `-O3` | 88 | 128% | 71 | 100% |
| C, clang 13, `-O3 -march=native` | 69 | 100% | 124 | 175% |
| C, clang 13, `-O3` | 70 | 101% | 124 | 175% |
| Haskell, 3-channel | 55 | 79% | 70 | 99% |
| Haskell, 4-channel | 54 | 78% | 72 | 102% |
On Ryzen 3700X, for the photo:
| Implementation | Decoding, ms | , % of best C | Encoding, ms | , % of best C |
|----------------------------------|--------------|---------------|--------------|---------------|
| C, gcc 11, `-O3 -march=native` | 179 | 121% | 198 | 101% |
| C, gcc 11, `-O3` | 174 | 118% | 196 | 100% |
| C, clang 13, `-O3 -march=native` | 158 | 107% | 266 | 136% |
| C, clang 13, `-O3` | 148 | 100% | 252 | 129% |
| Haskell, 3-channel | 132 | 89% | 191 | 97% |
| Haskell, 4-channel | 145 | 98% | 141 | 72% |
For the artwork:
| Implementation | Decoding, ms | , % of best C | Encoding, ms | , % of best C |
|----------------------------------|--------------|---------------|--------------|---------------|
| C, gcc 11, `-O3 -march=native` | 68 | 117% | 56 | 102% |
| C, gcc 11, `-O3` | 66 | 114% | 55 | 100% |
| C, clang 13, `-O3 -march=native` | 60 | 103% | 96 | 175% |
| C, clang 13, `-O3` | 58 | 100% | 90 | 164% |
| Haskell, 3-channel | 48 | 83% | 54 | 98% |
| Haskell, 4-channel | 48 | 83% | 52 | 95% |