Lossless compression ratio and Weissman score:
| format |
avg_bpp |
avg_compression_ratio |
avg_space_saving |
wavg_encode_time |
wavg_decode_time |
weissman_score |
| jxl_e3_20210715 |
10.549 |
2.275 |
0.5605 |
0.4825 |
0.6872 |
1.3966 |
| webp_z5_1.2.0 |
10.769 |
2.229 |
0.5513 |
0.8119 |
0.6263 |
1.2618 |
| webp_z7_1.2.0 |
10.731 |
2.236 |
0.5529 |
2.5725 |
0.6438 |
1.0803 |
| jxl_e5_20210715 |
10.229 |
2.346 |
0.5738 |
4.2099 |
0.6909 |
1.0664 |
| jxl_20210715 |
10.097 |
2.377 |
0.5793 |
6.5659 |
0.6355 |
1.0257 |
| webp2_20210715 |
10.266 |
2.338 |
0.5723 |
5.8175 |
1.2516 |
1.0230 |
| jxl_0.3.7 |
10.097 |
2.377 |
0.5793 |
6.7333 |
0.6383 |
1.0228 |
| png |
13.519 |
1.775 |
0.4367 |
0.8402 |
0.8209 |
1.0000 |
| webp_1.2.0 |
10.508 |
2.284 |
0.5622 |
15.5694 |
0.7398 |
0.8975 |
| webp2_20201204 |
10.397 |
2.308 |
0.5668 |
18.6267 |
1.2856 |
0.8905 |
| mozjpeg |
13.959 |
1.719 |
0.4184 |
2.1527 |
0.1256 |
0.8497 |
| heif_1.12.0 |
13.769 |
1.743 |
0.4263 |
2.8206 |
0.9867 |
0.8322 |
| jxl_e9E3I1_20210715 |
9.756 |
2.460 |
0.5935 |
151.9990 |
0.6585 |
0.7820 |
| aom_20210715 |
11.656 |
2.059 |
0.5143 |
92.8878 |
0.9902 |
0.6827 |
| aom_3.1.1 |
11.657 |
2.059 |
0.5143 |
113.1830 |
1.0100 |
0.6711 |
Lossy compression and speed
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