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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
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In this paper, we propose a new algorithm to improve the contrast ratio, to preserve information of bright regions and to maintain the color of backlight image that appears with a great relative contrast. Backlight images of the natural environment have characteristics for difference of local brightness; the overall image contrast improvement is not easy. To improve the contrast of the backlight images, MSR (Multi-Scale Retinex) algorithm using the existing multi-scale Gaussian filter is applied. However, existing multi-scale Gaussian filter involves color distortion and information loss of bright regions due to excessive contrast enhancement and noise because of the brightness improvement of dark regions. Moreover, it also increases computational complexity due to the use of multi-scale Gaussian filter. In order to solve these problems, a linear MSR is performed that reduces the amount of computation from the HSV color space preventing the color distortion and information loss due to excessive contrast enhancement. It can also remove the noise of the dark regions which is occurred due to the improved contrast through edge preserving filter. Through experimental evaluation of the average color difference comparison of CIELAB color space and the visual assessment, we have confirmed excellent performance of the proposed algorithm compared to conventional MSR algorithm.
목차
Abstract
1. 서론
2. 기존의 방법
3. 제안하는 MSR 알고리즘
4. 실험 및 평가
5. 결론
참고문헌
참고문헌 (8)
참고문헌 신청
1. [단행본] - R. C. Gonzalez / 2002 / Digital Image Processing / Prentice Hall
2. [학술지(정기간행물)] - G. H. Park / 2008 / A contrast enhancement method using dynamic range separate histogram equalization / IEEE Trans. Consumer Electronics 54 (4) : 1981 ~ 1987
3. [보고서] - Z. Rahman / 1995 / Properties of a center/surround Retinex: Part 1: Signal processing design : 13 ~
4. [학술지(정기간행물)] - I. S. Jang / 2009 / Reduction of Color Distortion by Estimating Dominant Chromaticity in Multi-Scaled Retinex / Jurnal of the IEEK SP 46 (3) : 52 ~ 59
5. [학술지(정기간행물)] - I. S. Jang / 2009 / Reduction of Color Distortion by Estimating Dominant Chromaticity in Multi-Scaled Retinex / Jurnal of the IEEK SP 46 (3) : 52 ~ 59
2. [학술지(정기간행물)] - G. H. Park / 2008 / A contrast enhancement method using dynamic range separate histogram equalization / IEEE Trans. Consumer Electronics 54 (4) : 1981 ~ 1987
3. [보고서] - Z. Rahman / 1995 / Properties of a center/surround Retinex: Part 1: Signal processing design : 13 ~
4. [학술지(정기간행물)] - I. S. Jang / 2009 / Reduction of Color Distortion by Estimating Dominant Chromaticity in Multi-Scaled Retinex / Jurnal of the IEEK SP 46 (3) : 52 ~ 59
5. [학술지(정기간행물)] - I. S. Jang / 2009 / Reduction of Color Distortion by Estimating Dominant Chromaticity in Multi-Scaled Retinex / Jurnal of the IEEK SP 46 (3) : 52 ~ 59
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UCI(KEPA) : I410-ECN-0101-2014-500-002535080