Enhanced High Contrast Image Rendering Method Using Visual Properties for Sharpness Perception 


Vol. 38,  No. 8, pp. 669-679, Aug.  2013


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  Abstract

When an image is converted from HDR (high dynamic range) to LDR (low dynamic range), a tone mapping process is the essential component. Many TMOs (tone mapping operators) have been motivated by human vision which has lower physical luminance range than that in real scene. The representative of human vision properties which motivate TMOs is the local adaptation. However, TMOs are ultimately compressing image information such as contrast, saturation, etc. and the compression causes defects in image quality. In this paper, in order to compensate the degradation of the image which is caused by TMOs, the visual acuity-based edge stop function is proposed for applying the property of human vision to base-detail separation. In addition, using CSF (contrast sensitivity function) which represents the relationship among spatial frequency, contrast sensitivity, and luminance, the sharpness filter is designed and adaptively applied to the detail layer in regard to surround luminance.

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  Cite this article

[IEEE Style]

G. Lee, S. Lee, H. Kwon, K. Sohng, "Enhanced High Contrast Image Rendering Method Using Visual Properties for Sharpness Perception," The Journal of Korean Institute of Communications and Information Sciences, vol. 38, no. 8, pp. 669-679, 2013. DOI: .

[ACM Style]

Geun-young Lee, Sung-hak Lee, Hyuk-ju Kwon, and Kyu-ik Sohng. 2013. Enhanced High Contrast Image Rendering Method Using Visual Properties for Sharpness Perception. The Journal of Korean Institute of Communications and Information Sciences, 38, 8, (2013), 669-679. DOI: .

[KICS Style]

Geun-young Lee, Sung-hak Lee, Hyuk-ju Kwon, Kyu-ik Sohng, "Enhanced High Contrast Image Rendering Method Using Visual Properties for Sharpness Perception," The Journal of Korean Institute of Communications and Information Sciences, vol. 38, no. 8, pp. 669-679, 8. 2013.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880