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Proceedings Paper

Psychophysical measurement for perceptual image brightness enhancement based on image classification
Author(s): Inji Kim; Wonhee Choe; Seong-Deok Lee
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Paper Abstract

The purpose of this study is to examine the difference in perceptual brightness enhancement per image category through perceptual brightness measurement. Perceptual brightness is measured via psychophysical experiment and brightness enhancement is performed by TMF (Tone Mapping Function). The classification process is comprised of two steps. It is possible to classify histograms into six groups. The three different TMFs for each category selected using the criteria and TMF application strengths. A psychophysical experiment to measure perceptual brightness enhancement was carried out. The experiment was to determine the equal perceptual brightness point between an original image and the corresponding set of TMF images. The results showed that the mean luminance for each category is significantly different. The results from brightness matching indicate that perceptual brightness enhancement is dependent on image category. We can propose that image category should be considered for advanced brightness enhancement methods.

Paper Details

Date Published: 9 February 2006
PDF: 7 pages
Proc. SPIE 6057, Human Vision and Electronic Imaging XI, 605718 (9 February 2006); doi: 10.1117/12.642017
Show Author Affiliations
Inji Kim, Samsung Advanced Institute of Technology (South Korea)
Wonhee Choe, Samsung Advanced Institute of Technology (South Korea)
Seong-Deok Lee, Samsung Advanced Institute of Technology (South Korea)

Published in SPIE Proceedings Vol. 6057:
Human Vision and Electronic Imaging XI
Bernice E. Rogowitz; Thrasyvoulos N. Pappas; Scott J. Daly, Editor(s)

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