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Proceedings Paper

Extending quality metrics to full luminance range images
Author(s): Tunç O. Aydın; Rafal Mantiuk; Hans-Peter Seidel
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Paper Abstract

Many quality metrics take as input gamma corrected images and assume that pixel code values are scaled perceptually uniform. Although this is a valid assumption for darker displays operating in the luminance range typical for CRT displays (from 0.1 to 80 cd/m2), it is no longer true for much brighter LCD displays (typically up to 500 cd/m2), plasma displays (small regions up to 1000 cd/m2) and HDR displays (up to 3000 cd/m2). The distortions that are barely visible on dark displays become clearly noticeable when shown on much brighter displays. To estimate quality of images shown on bright displays, we propose a straightforward extension to the popular quality metrics, such as PSNR and SSIM, that makes them capable of handling all luminance levels visible to the human eye without altering their results for typical CRT display luminance levels. Such extended quality metrics can be used to estimate quality of high dynamic range (HDR) images as well as account for display brightness.

Paper Details

Date Published: 4 March 2008
PDF: 10 pages
Proc. SPIE 6806, Human Vision and Electronic Imaging XIII, 68060B (4 March 2008); doi: 10.1117/12.765095
Show Author Affiliations
Tunç O. Aydın, MPI Informatik (Germany)
Rafal Mantiuk, MPI Informatik (Germany)
Hans-Peter Seidel, MPI Informatik (Germany)

Published in SPIE Proceedings Vol. 6806:
Human Vision and Electronic Imaging XIII
Bernice E. Rogowitz; Thrasyvoulos N. Pappas, Editor(s)

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