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Optical Engineering

Novel contrast enhancement scheme for infrared image using detail-preserving stretching
Author(s): Jin-Hyung Kim; Joo-Hyung Kim; Seung-Won Jung; Sung-Jea Ko; Chang-Kyun Noh
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Paper Abstract

A novel contrast enhancement scheme for infrared (IR) image using detail-preserving stretching (DPS) is presented in this paper. Unlike CCD images, the histogram of the IR images is not distributed to the entire dynamic range of the input image. Therefore, in order to enhance the contrast, the proposed method adopts contrast stretching since it has a low computational complexity and preserves the global contrast of the original. However, the stretching often produces unpleasant images that do not contain clear details by limiting the output dynamic range. To solve this problem, we propose a new contrast stretching method based on gradient-domain processing (GDP) that can enhance the local image contrast while preserving the global contrast as well as the image details. Experimental results demonstrate that the proposed method outperforms the conventional stretching-based and other image enhancement methods with respect to the visual quality and computational complexity.

Paper Details

Date Published: 1 July 2011
PDF: 11 pages
Opt. Eng. 50(7) 077002 doi: 10.1117/1.3597639
Published in: Optical Engineering Volume 50, Issue 7
Show Author Affiliations
Jin-Hyung Kim, Korea Univ. (Korea, Republic of)
Joo-Hyung Kim, Korea Univ. (Korea, Republic of)
Seung-Won Jung, Korea Univ. (Korea, Republic of)
Sung-Jea Ko, Korea Univ. (Korea, Republic of)
Chang-Kyun Noh, Agency for Defense Development (Korea, Republic of)

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