Compresses images.
In order to compress an image use the following command:
$ python3 compressor.py -c image.png image.bin
To decompress an image use the following command:
$ python3 compressor.py -x image.bin image2.png
This approach was tested with the Rawzor's Image Compression Benchmark.
The current performarnce is below optimized png with optipng:
| image | comp. ratio | png ratio |
|---|---|---|
| cathedral.ppm | 1.773578 | 1.948486 |
| bridge.ppm | 1.567508 | 1.691269 |
| spider_web.ppm | 3.547640 | 3.817402 |
| nightshot_iso_1600.ppm | 1.633340 | 1.774391 |
| hdr.ppm | 2.589867 | 2.879170 |
| nightshot_iso_100.ppm | 2.809052 | 3.084504 |
| big_building.ppm | 1.792917 | 1.913515 |
| leaves_iso_200.ppm | 1.681106 | 1.783960 |
| artificial.ppm | 5.879867 | 11.426134 |
| leaves_iso_1600.ppm | 1.496978 | 1.593128 |
| big_tree.ppm | 1.633181 | 1.728946 |
| flower_foveon.ppm | 3.164391 | 3.299397 |
| fireworks.ppm | 3.817746 | 3.916710 |
| deer.ppm | 1.433505 | 1.510089 |
| mean | 1.78325 | 1.93100 |
To download the dataset, run:
bash benchmark_download.sh
To reproduce the results, run:
bash benchmark_download.sh
To get the previous table, run:
bash benchmark_download.sh
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