Minor release to improve the chroma models.
Changed:
- Both models: The degradation model has changed from using vanilla JPEG noise to using custom 4x4 DCT blocks with a monotonically increasing radial base quantisation table. This change was done to better match compression artifacts from codecs like AVC, HEVC and AV1.
- ArtCNN_R8F64_Chroma: Now trained with minor compression noise to improve general usefulness.
- ArtCNN_R8F64_Chroma_DN: Tuned to be slightly more conservative in its denoising capabilities.