Browse > Article

An Adaptive Contrast Enhancement Method using Dynamic Range Segmentation for Brightness Preservation  

Park, Gyu-Hee (한양대학교 전자전기제어공학과)
Cho, Hwa-Hyun (한양대학교 전자전기제어공학과)
Lee, Seung-Jun (한양대학교 전자전기제어공학과)
Yun, Jong-Ho (한양대학교 전자전기제어공학과)
Chon, Myung-Ryul (한양대학교 전자전기제어공학과)
Publication Information
The Transactions of the Korean Institute of Electrical Engineers P / v.57, no.1, 2008 , pp. 14-21 More about this Journal
Abstract
In this paper, we propose an adaptive contrast enhancement method using dynamic range segmentation. Histogram Equalization (HE) method is widely used for contrast enhancement. However, histogram equalization method is not suitable for commercial display because it may cause undesirable artifacts due to the significant change in brightness. The proposed algorithm segments the dynamic range of the histogram and redistributes the pixel intensities by the segment area ratio. The proposed method may cause over compressed effect when intensity distribution of an original image is concentrated in specific narrow region. In order to overcome this problem, we introduce an adaptive scale factor. The experimental results show that the proposed algorithm suppresses the significant change in brightness and provides wide histogram distribution compared with histogram equalization.
Keywords
Contrast Enhancement; Histogram Equalization; Dynamic Range; Brightness; Histogram equalized;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 조화현, 최명렬, "실시간 처리를 위한 적응형 콘트라스트 향상 기법", 대한전자공학회, 전자공학회논문지, 제 42권, SP 제 1호, pp. 51-57, 2005   과학기술학회마을
2 J. Y. Kim, et al., "An Advanced Contrast Enhancement Using Partially Overlapped Sub-Block Histogram Equalization", IEEE Trans. on Circuit and Systems, vol. 11, no. 4, pp. 475-484, 2005
3 Z. Chen, et al., "Gray-Level Grouping (GLG) : An Automatic Method for Optimized Image Contrast Enhancement - Part1 : The Basic Method", IEEE Transactions on Image processing, vol. 15, no. 8, pp. 2290-2302, 2006
4 S. D. Chen, et al., "Contrast Enhancement using Recursive Mean-Separate Histogram Equalization for Scalable Brightness Preservation", IEEE Trans. on Consumer Electron, vol. 49, no. 4, pp. 1301-1309, 2003   DOI   ScienceOn
5 R. Crane, "A Simplified Approach to Image Processing", Prentice Hall, pp. 42-66, 1997
6 Y. T. Kim, et al., "Contrast enhancement using brightness preserving bi-histogram equalization", IEEE Trans. on Consumer Electron, vol. 43, no. 1, pp. 1-8, 1997   DOI   ScienceOn
7 R. C. Gonzalez, "Digital Image Processing", 2nd Edition, Prentice Hall, pp. 75-146, 2002
8 H. Hayashi, et al., "Contrast Improvement for Displayed Color Image Based on Color Difference", IDW '06 VHF, pp. 531-534, 2006