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

arXiv:2403.18589v1 Announce Type: cross
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 …

abstract arxiv cs.cv eess.iv encoder human images quality turbo type