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A Tone Compression Model for the Compensation of White Point Shift Generated from HDR Rendering

Seok-Min CHAE, Sung-Hak LEE, Hyuk-Ju KWON, Kyu-Ik SOHNG

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Summary :

Recently, a new image appearance model, named iCAM06, was developed for High-Dynamic-Range (HDR) image rendering. The dynamic range of a HDR image needs to be mapped onto the range of the output device where it will be displayed, this is called tone reproduction or tone mapping. iCAM06, a representative HDR rendering algorithm also uses tone compression for image reproduction on the dynamic range of output devices. However, iCAM06 causes a white point shift during its tone compression process. Therefore, we propose a compensation method for white point shifts using corrected channel gain. Experiment results show that the proposed method has better performance than iCAM06.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E95-A No.8 pp.1297-1301
Publication Date
2012/08/01
Publicized
Online ISSN
1745-1337
DOI
10.1587/transfun.E95.A.1297
Type of Manuscript
Special Section LETTER (Special Section on Image Media Quality)
Category
Coding & Processing

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