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10 September 2015 Modeling a color-rendering operator for high dynamic range images using a cone-response function
Ho-Hyoung Choi, Gi-Seok Kim, Byoung-Ju Yun
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Journal of Electronic Imaging, Vol. 24, Issue 5, 053005 (September 2015). https://doi.org/10.1117/1.JEI.24.5.053005
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.
Choi, Kim, and Yun: Modeling a color-rendering operator for high dynamic range images using a cone-response function
CC BY: © The Authors. Published by SPIE under a Creative Commons Attribution 4.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.
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Ho-Hyoung Choi, Gi-Seok Kim, and Byoung-Ju Yun "Modeling a color-rendering operator for high dynamic range images using a cone-response function," Journal of Electronic Imaging 24(5), 053005 (10 September 2015). https://doi.org/10.1117/1.JEI.24.5.053005
Published: 10 September 2015
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Cited by 3 scholarly publications.
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KEYWORDS
High dynamic range imaging
Image processing
Color difference
Colorimetry
RGB color model
Ultraviolet radiation
Visibility
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