Editing Peak signal-to-noise ratio (section)

== Variants ==
PSNR-HVS<ref>Egiazarian, Karen, Jaakko Astola, Nikolay Ponomarenko, Vladimir Lukin, Federica Battisti, and Marco Carli (2006). "New full-reference quality metrics based on HVS." In Proceedings of the Second International Workshop on Video Processing and Quality Metrics, vol. 4.</ref> is an extension of PSNR that incorporates properties of the human visual system such as [[Contrast (vision)|contrast perception]].

PSNR-HVS-M improves on PSNR-HVS by additionally taking into account [[visual masking]].<ref>{{Cite journal|last1=Ponomarenko|first1=N.|last2=Ieremeiev|first2=O.|last3=Lukin|first3=V.|last4=Egiazarian|first4=K.|last5=Carli|first5=M.|date=February 2011|title=Modified image visual quality metrics for contrast change and mean shift accounting|url=https://ieeexplore.ieee.org/document/5744476|journal=2011 11th International Conference the Experience of Designing and Application of CAD Systems in Microelectronics (CADSM)|pages=305–311}}</ref> In a 2007 study, it delivered better approximations of human visual quality judgements than PSNR and [[structural similarity index measure|SSIM]] by large margin. It was also shown to have a distinct advantage over [[DCTune]] and PSNR-HVS.<ref name="PSNR-HVS-M">{{citation|surname1=Nikolay Ponomarenko|surname2= Flavia Silvestri|surname3= Karen Egiazarian|surname4= Marco Carli|surname5= Jaakko Astola|surname6= Vladimir Lukin|periodical=CD-ROM Proceedings of the Third International Workshop on Video Processing and Quality Metrics for Consumer Electronics VPQM-07, 25.–26. Januar 2007|title=On between-coefficient contrast masking of DCT basis functions |location=Scottsdale AZ|language=de|url=http://ponomarenko.info/vpqm07_p.pdf}}</ref>