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Journal of Electronic Imaging • Open Access

Modeling a color-rendering operator for high dynamic range images using a cone-response function
Author(s): Ho-Hyoung Choi; Gi-Seok Kim; Byoung-Ju Yun

Paper Abstract

Tone-mapping operators are the typical algorithms designed to produce visibility and the overall impression of brightness, contrast, and color of high dynamic range (HDR) images on low dynamic range (LDR) display devices. Although several new tone-mapping operators have been proposed in recent years, the results of these operators have not matched those of the psychophysical experiments based on the human visual system. A color-rendering model that is a combination of tone-mapping and cone-response functions using an XYZ tristimulus color space is presented. In the proposed method, the tone-mapping operator produces visibility and the overall impression of brightness, contrast, and color in HDR images when mapped onto relatively LDR devices. The tone-mapping resultant image is obtained using chromatic and achromatic colors to avoid well-known color distortions shown in the conventional methods. The resulting image is then processed with a cone-response function wherein emphasis is placed on human visual perception (HVP). The proposed method covers the mismatch between the actual scene and the rendered image based on HVP. The experimental results show that the proposed method yields an improved color-rendering performance compared to conventional methods.

Paper Details

Date Published: 10 September 2015
PDF: 11 pages
J. Electron. Imaging. 24(5) 053005 doi: 10.1117/1.JEI.24.5.053005
Published in: Journal of Electronic Imaging Volume 24, Issue 5
Show Author Affiliations
Ho-Hyoung Choi, Chungbuk National Univ. (Korea, Republic of)
Gi-Seok Kim, Gyeongju Univ. (Republic of Korea)
Byoung-Ju Yun, Kyungpook National Univ. (Korea, Republic of)

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