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On the relationship between SSIM and PSNR for DCT-based compressed images and video: SSIM as content-aware PSNR

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posted on 2022-12-16, 23:05 authored by Maria MartiniMaria Martini

The aim of this paper is to show how the structural similarity metric SSIM for image quality assessment can be seen in many cases, such as DCT-based compressed images and video, as a content-aware version of the peak signal-to-noise ratio (PSNR). In fact, under some assumptions described in the paper, the first can be derived directly from the latter based on a single content-dependent parameter, i.e. the variance of the image / video frame. 


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Kingston University London

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  • United Kingdom

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