An Improved Color Image Enhancement Algorithm Based on 3-D Color Histogram Equalization

Abstract:

This paper proposes an improved color image enhancement algorithm based on 3-D color histogram equalization algorithm. When the existed 3-D color histogram equalization algorithms in the literatures are applied in processing dim color images, the processed color images often turn pale due to the decrease of color-saturations and have false contours due to gray-scale merging phenomenon in the histogram equalization algorithm. In this paper, the proposed algorithm can make more pixels of the processed color images keep their color-saturations and reduce the gray-scale merging with Logarithmic histogram equalization algorithm. Test results with dim color images present a better effect of image enhancement.

• Periodical: Applied Mechanics and Materials (Volumes 321-324)
• Pages: 1133-1137
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.321-324.1133
• Online since: June 2013
• Authors: Yu Ting Song, Xiu Hua Ji, Shi Lin Zhao
• Keywords: 3-D Color Histogram Equalization, Color Image Enhancement, Gray-Scale Merger, Hue

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