Conference proceedings

Image quality metrics: PSNR vs. SSIM

Horé A, Ziou D ...see all

Proceedings - International Conference on Pattern Recognition (2010) pp. 2366-2369

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In this paper, we analyse two well-known objective image quality metrics, the peak-signal-to-noise ratio (PSNR) as well as the structural similarity index measure (SSIM), and we derive a simple mathematical relationship between them which works for various kinds of image degradations such as Gaussian blur, additive Gaussian white noise, jpeg and jpeg2000 compression. A series of tests realized on images extracted from the Kodak database gives a better understanding of the similarity and difference between the SSIM and the PSNR.

Author-supplied keywords

  • Image quality metrics
  • PSNR
  • SSIM

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  • Alain Horé

  • Djemel Ziou

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