v1.0

Cool-chic 1.0: Where it all began 👼

Initial release of COOL-CHIC: Coordinate-based Low Complexity Hierarchical Image Codec, ICCV 2023, Ladune et al.. Cool-chic is a learned image codec, based on overfitting. As such it learns a tiny decoder (around 1 000 parameters) for each image to compress.

Despite its very low decoding complexity, Cool-chic significantly outperforms JPEG and COIN (an other overfitted codec) while being not too far from HEVC.

BD-rate against different anchors (more results available in the paper):

Dataset	vs. COIN	vs. JPEG	vs. HEVC (HM 16.20)	Avg. decoder complexity [MAC / pixel]
kodak	- 65 %	- 55 %	+ 22.2 %	800