| 一种颜色保持的彩色图像增强新算法 |
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| 引用本文： | 赵全友,潘保昌,郑胜林,战荫伟.一种颜色保持的彩色图像增强新算法[J].计算机应用,2008,28(2):448-451. |
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| 作者姓名： | 赵全友 潘保昌 郑胜林 战荫伟 |
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| 作者单位： | 广东工业大学信息工程学院数字图像研究所 广东工业大学信息工程学院数字图像研究所 广东工业大学信息工程学院数字图像研究所 广东工业大学计算机学院 |
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| 摘 要： | 分析了Retinex理论及其典型彩色图像增强算法，在此基础上提出一种颜色保持的彩色图像增强新算法。利用非线性sigmoid传输函数多尺度增强亮度分量，并进行局部对比度增强后获得亮度增益曲面，最后利用亮度增益曲面对原彩色图像RGB三颜色分量同比增强，保证了色调恒定不失真。几种算法实验结果的比较和分析。表明，这种算法是有效的。
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| 关 键 词： | Retinex理论 颜色保持 图像增强 |
| 文章编号： | 1001-9081（2008）02-0448-04 |
| 收稿时间： | 2007-08-21 |
| 修稿时间： | 2007-10-15 |
New hue preserving algorithm for color image enhancement |
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| ZHAO Quan-you,PAN Bao-chang,ZHENG Sheng-lin,ZHAN Yin-wei.New hue preserving algorithm for color image enhancement[J].journal of Computer Applications,2008,28(2):448-451. |
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| Authors: | ZHAO Quan-you PAN Bao-chang ZHENG Sheng-lin ZHAN Yin-wei |
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| Affiliation: | ZHAO Quan-you,PAN Bao-chang,ZHENG Sheng-lin,ZHAN Yin-wei(Faculty of Information Engineering,Guangdong University of Technology,Guangzhou Guangdong 510006,China,2.Faculty of Computer,China) |
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| Abstract: | After analyzing Retinex theory and its typical algorithm for color image enhancement, a new hue preserving algorithm for color image enhancement was presented. Firstly, it utilized a nonlinear sigmoid transfer function to intensify the image brightness component at multi-scale, and then brightness gain curved surface was acquired by reinforcing the image local contrast, finally the original color image RGB three components were enhanced at the same proportion by brightness gain curved surface, which ensured the hue was constant and undistorted. Experimental results of the proposed algorithm and other algorithms were compared and analyzed to illustrate the effectiveness of the proposed method. |
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| Keywords: | Retinex theory hue preserving color image enhancement |
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