| 基于小波变换的图像增强算法研究 |
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| 引用本文： | Li Yun,刘学诚. 基于小波变换的图像增强算法研究[J]. 计算机应用与软件, 2008, 25(8) |
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| 作者姓名： | Li Yun 刘学诚 |
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| 作者单位： | 泰山学院数学与系统科学系,山东,泰安,271021;泰山学院数学与系统科学系,山东,泰安,271021 |
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| 摘 要： | 针对图像对比度低、成像质量差的问题,提出一种基于小波变换的直方图均衡算法,用于图像对比度增强.首先对图像作直方图均衡,然后通过对小波变换的一级或二级近似系数的非线性增强处理.实验结果证明,处理后的图像细节清晰可辨,边界信息也得到了保留,由此认为小波变换对改善图像的质量是有效的.
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| 关 键 词： | 图像增强 直方图均衡 小波变换 对比度增强 |
ON ALGORITHM OF IMAGE CONTRAST ENHANCEMENT BASED ON WAVELET TRANSFORMATION |
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| Li Yun,Liu Xuecheng. ON ALGORITHM OF IMAGE CONTRAST ENHANCEMENT BASED ON WAVELET TRANSFORMATION[J]. Computer Applications and Software, 2008, 25(8) |
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| Authors: | Li Yun Liu Xuecheng |
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| Affiliation: | Li Yun Liu Xuecheng(Department of Mathematics , System Science,Taishan University,Taishan 271021,Sh,ong,China) |
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| Abstract: | In view of image problems of low in contrast gradient and poor in imaging quality, in this article it proposed a histogram equalization algorithm based on wavelet transformation for enhancing the contrast gradient of image. This algorithm firstly equalizes the image with histogram, and then carries out non-linear enhancement processing to first or second order of approximate coefficient of the wavelet transformation. In this article, MatLab and C were adopted in emulation experiment, and the obtained experi... |
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| Keywords: | Image enhancement Histogram equalization Wavelet transformation Contrast enhancement |
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