English

Users prefer Jpegli over same-sized libjpeg-turbo or MozJPEG

Image and Video Processing 2024-03-28 v1 Computer Vision and Pattern Recognition

Abstract

We performed pairwise comparisons by human raters of JPEG images from MozJPEG, libjpeg-turbo and our new Jpegli encoder. When compressing images at a quality similar to libjpeg-turbo quality 95, the Jpegli images were 54% likely to be preferred over both libjpeg-turbo and MozJPEG images, but used only 2.8 bits per pixel compared to libjpeg-turbo and MozJPEG that used 3.8 and 3.5 bits per pixel respectively. The raw ratings and source images are publicly available for further analysis and study.

Cite

@article{arxiv.2403.18589,
  title  = {Users prefer Jpegli over same-sized libjpeg-turbo or MozJPEG},
  author = {Martin Bruse and Luca Versari and Zoltan Szabadka and Jyrki Alakuijala},
  journal= {arXiv preprint arXiv:2403.18589},
  year   = {2024}
}
R2 v1 2026-06-28T15:35:34.801Z