A Quality Metric For High Dynamic Range

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Publisher: SMPTE — White Plains, NY
Doc Type: Conference Paper
Content Type: Original Research
Volume: 2014, No. 10, pp. 1–25
Abstract: The Peak Signal to Noise Ratio (PSNR) metric has long been utilized for codec evaluation and development, and other uses. However, for High Dynamic Range (HDR), the PSNR metric is not suitable. A more appropriate characterization of coding and image quality is to split image brightness into ranges (such as factors of two), and then determine the standard deviation within each such range. Once the standard deviation (sigma) has been determined, the two sigma and above population of pixel differences is shown as percentages of pixels. This is necessary because codec pixel differences do not typically follow a normal Gaussian error distribution. The value of sigma at each brightness range, together with the percentage proportions of two sigma and above outliers, provides an appropriate quality metric system for HDR.
Publication Date: 2014-10-01
DOI: 10.5594/M001594
Link: https://doi.org/10.5594/M001594
Author(s): Gary DemosImage Essence, Perris, California, garyd@alumni.caltech.edu
Keyword(s): HDR
Copyright: © 2014 Society of Motion Picture and Television Engineers, Inc.

Bibliographic Reference(s)

Demos Gary , “Layered Motion Compensation for Moving Image Compression” SMPTE Journal , Jan/Feb 2009 . EXTERNAL
Wang Zhou Bovik Alan Conrad Sheikh Hamid Rahim Simoncelli Eero P. , “Image Quality Assesment: From Error Visibility to Structural Similarity” IEEE Transactions on Image Processing , Vol 13 , No 4 , April 2004 . EXTERNAL
Hassan Mohammed Bhagvati Chakravarthy , “Structural Similarity Measure for Color Images” International Journal of Computer Applications , Vol 43 , No 14 , April 2012 . EXTERNAL

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<span class="citation">Gary Demos; <cite>A Quality Metric For High Dynamic Range</cite>, SMPTE Meetings and Conferences ( October 2014); SMPTE, 2014. Available at <a href="https://doi.org/10.5594/M001594" target="_blank" rel="noopener">https://doi.org/10.5594/M001594</a></span>

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doi: 10.5594/M001594
url: https://doi.org/10.5594/M001594

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Gary Demos; <cite id="bib-10-5594-m001594">A Quality Metric For High Dynamic Range</cite>, SMPTE Meetings and Conferences ( October 2014); SMPTE, 2014
<span class="doi">10.5594/M001594</span>
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