Cool-chic
Compression performance¶
Image compression performance are presented on the kodak (RGB), clic20-pro-valid (RGB) and jvet (YUV420) datasets. The overall MSE is obtained by averaging the 3 channels weighted by their respective resolution. More information about obtaining one single MSE for the entire dataset is discussed in this github issue.
BD-rate¶
The following table sums up the compression performance obtained by Cool-chic 3.4 against different anchors. Results are measure through BD-rates which represents the relative rate required for Cool-chic to obtain the same quality than some other codec.
| BD-rate of Cool-chic 3.4 vs. [%] | Avg. decoder complexity | |||||||
|---|---|---|---|---|---|---|---|---|
| Cheng | ELIC | Cool-chic 3.3 | C3 | HEVC (HM 16) | VVC (VTM 19) | MAC / pixel | CPU Time [ms] | |
| kodak | -4.2 % | +7.5 % | -0.9 % | -4.3 % | -17.2 % | +3.4 % | 1303 | 74 |
| clic20-pro-valid | -13.2 % | -0.2 % | -0.3 % | -1.3 % | -25.1 % | -2.3 % |
1357 | 354 |
| jvet (BCDEF) | / | / | -0.2 % | / | -18.3 % | +18.6 % | 1249 | 143 |
| jvet (class B) | / | / | +0.9% | / | -9.9 % | +20.7 % | 1300 | 282 |
| jvet (class C) | / | / | -1.3% | / | -16.1 % | +9.2 % | 1289 | 69 |
| jvet (class D) | / | / | -1.4% | / | -12.4 % | +9.6 % | 948 | 18 |
| jvet (class E) | / | / | -3.8% | / | -6.2 % | +27.8 % | 1347 | 125 |
| jvet (class F) | / | / | +0.2% | / | -31.8 % | +20.6 % | 1249 | 182 |
Decoding time are obtained on a single CPU core of an an AMD EPYC 7282 16-Core Processor, PSNR is computed in the RGB domain for kodak and CLIC20, in the YUV420 domain for jvet. More details about decoding time are available in the decoding complexity results.
Rate-distortion graphs¶
Kodak¶
CLIC20 Pro Valid¶
JVET Class B¶
JVET Class C¶
JVET Class D¶
JVET Class E¶
JVET Class F¶
JVET All Classes¶
