Psychophysical measurement for perceptual image brightness enhancement based on image classification

Inji Kim; Wonhee Choe; Seong-Deok Lee

doi:10.1117/12.642017

9 February 2006 Psychophysical measurement for perceptual image brightness enhancement based on image classification

Inji Kim, Wonhee Choe, Seong-Deok Lee

Proceedings Volume 6057, Human Vision and Electronic Imaging XI; 605718 (2006) https://doi.org/10.1117/12.642017
Event: Electronic Imaging 2006, 2006, San Jose, California, United States

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.

Citation Download Citation

Inji Kim, Wonhee Choe, and Seong-Deok Lee "Psychophysical measurement for perceptual image brightness enhancement based on image classification", Proc. SPIE 6057, Human Vision and Electronic Imaging XI, 605718 (9 February 2006); https://doi.org/10.1117/12.642017

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