What’s new in Cool-chic 4.2?¶
Cool-chic 4.2 focuses on perceptually-oriented image coding. This release draws heavily on the following paper: Good, Cheap, and Fast: Overfitted Image Compression with Wasserstein Distortion, Ballé et al.
Wasserstein Distance as a distortion metric:
--tune=wasserstein
Decoder-side common randomness for more high-frequency in the decoded image
Improved image coding performance: around -50% rate versus Cool-chic 4.1 for the same visual quality
Low decoding complexity 1728 MAC / pixel
A pair of bitstreams in samples/bitstreams/
illustrates the benefits of the
--tune=wasserstein
options. See the decoding example to decode them and see the pictures.
Check-out the release history to see previous versions of Cool-chic.