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Optical Engineering • Open Access

Visual sensitivity correlated tone reproduction for low dynamic range images in the compression field
Author(s): Geun-Young Lee; Sung-Hak Lee; Hyuk-Ju Kwon; Kyu-Ik Sohng

Paper Abstract

An image toning method for low dynamic range image compression is presented. The proposed method inserts tone mapping into JPEG baseline instead of postprocessing. First, an image is decomposed into detail, base, and surrounding components in terms of the discrete cosine transform coefficients. Subsequently, a luminance-adaptive tone mapping based on the human visual sensitivity properties is applied. In addition, compensation modules are added to enhance the visually sensitive factors, such as saturation, sharpness, and gamma. A comparative study confirms that the transmitted compression images have good image quality.

Paper Details

Date Published: 25 November 2014
PDF: 13 pages
Opt. Eng. 53(11) 113111 doi: 10.1117/1.OE.53.11.113111
Published in: Optical Engineering Volume 53, Issue 11
Show Author Affiliations
Geun-Young Lee, Kyungpook National Univ. (Republic of Korea)
Sung-Hak Lee, Kyungpook National Univ. (Republic of Korea)
Hyuk-Ju Kwon, Kyungpook National Univ. (Republic of Korea)
Kyu-Ik Sohng, Kyungpook National Univ. (Republic of Korea)


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