Peak signal-to-noise ratio revisited: Is simple beautiful?

Jari Korhonen, Junyong You

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review


Heavy criticism has been directed against using peak signal-to-noise ratio (PSNR) as a full reference quality metric for digitally processed images and video, since many studies have shown a weak correlation between subjective quality scores and the respective PSNR values. In this paper, we show that the low performance of PSNR is often related to a content dependent systematic shift of PSNR values. In scenarios with fixed content and distortion types that are typical for visual communications applications, PSNR may perform closely as well, or in some cases even better than the more complex objective quality models known from the literature. Therefore, the use of PSNR may be justified for comparative quality assessment with fixed content.
Original languageEnglish
Title of host publication2012 Fourth International Workshop on Quality of Multimedia Experience (QoMEX)
Publication date2012
ISBN (Print)978-1-4673-0724-6
ISBN (Electronic)978-1-4673-0725-3
Publication statusPublished - 2012
Event4th International Workshop onQuality of Multimedia Experience (QoMEX) - Melbourne, Australia
Duration: 5 Jul 20127 Jul 2012


Conference4th International Workshop onQuality of Multimedia Experience (QoMEX)
Internet address

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