Users prefer Guetzli JPEG over same-sized libjpeg

2017/03/13 by Alakuijala, Jyrki, Robert Obryk, Obryk, Robert +4
Computer Science · #Computer Vision and Pattern Recognition (cs.CV) #FOS: Computer and information sciences #Human-Computer Interaction (cs.HC) #Image and Video Quality Assessment #Video Analysis and Summarization #Visual Attention and Saliency Detection

paper · pdf · doi:10.48550/arxiv.1703.04416

openalex publication_date 2017/03/13 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We report on pairwise comparisons by human raters of JPEG images from libjpeg and our new Guetzli encoder. Although both files are size-matched, 75% of ratings are in favor of Guetzli. This implies the Butteraugli psychovisual image similarity metric which guides Guetzli is reasonably close to human perception at high quality levels. We provide access to the raw ratings and source images for further analysis and study.

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