Lossless compression ratio and Weissman score:
| codec |
avg. compression ratio |
avg. space saving |
wavg. encode time |
wavg. decode time |
Weissman score |
| daala |
2.798 |
64.26% |
0.8049 |
0.7280 |
3.3381 |
| vp9 |
2.905 |
65.58% |
3.9375 |
0.4193 |
2.8011 |
| av1-20160930 |
2.912 |
65.66% |
4.7511 |
0.4838 |
2.7455 |
| av1-20170809 |
2.984 |
66.49% |
20.4157 |
0.6900 |
2.4003 |
| kdu |
1.564 |
36.06% |
0.3875 |
0.2892 |
2.0946 |
| jxr |
1.560 |
35.89% |
0.4058 |
0.3628 |
2.0730 |
| av1-20180222 |
2.943 |
66.02% |
97.6492 |
1.0156 |
2.0444 |
| flif |
2.473 |
59.57% |
22.1088 |
4.3042 |
1.9732 |
| openjpeg |
1.564 |
36.06% |
2.1181 |
1.3794 |
1.6300 |
| webp |
2.124 |
52.93% |
37.9675 |
2.4799 |
1.6079 |
| bpg |
1.150 |
13.03% |
3.7503 |
3.5251 |
1.1151 |
| mozjpeg |
1.137 |
12.05% |
8.7385 |
0.4144 |
1.0000 |
Lossy compression and speed
.svg)