By Topic

Optimized tone mapping with perceptually uniform luminance values for backward-compatible high dynamic range video compression

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Alper Koz ; Dept. Traitement du Signal et des Images, Telecom ParisTech, Paris, France ; Frederic Dufau

Backward compatibility for high dynamic range image and video compression forms one of the essential requirements in the transition phase from low dynamic range (LDR) displays to high dynamic range (HDR) displays. In a recent work [1], an optimized solution for tone mapping and inverse tone mapping of HDR images is achieved in terms of mean square error (MSE) of the logarithm of luminance values of HDR image pixels for backward-compatible compression. A disadvantage of this approach was to use non uniform luminance values according to Human perception for minimization, which causes quite non-natural over-illumination in the produced LDR images. In this paper, we propose to use perceptually uniform luminance values as an alternative for the optimization of tone mapping curve. The results indicate that the proposed approach gives better performance (0.5-1 dB gains) in terms of Perceptually Uniform Peak Signal to Noise Ratio (PU-PSNR) and produces more realistic LDR images.

Published in:

Visual Communications and Image Processing (VCIP), 2012 IEEE

Date of Conference:

27-30 Nov. 2012