| 自适应小波阈值去噪算法及在图像处理中的应用 |
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| 引用本文： | 林杰,付梦印,李道平.自适应小波阈值去噪算法及在图像处理中的应用[J].兵工学报,2011,32(7):896-900. |
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| 作者姓名： | 林杰 付梦印 李道平 |
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| 作者单位： | (北京理工大学 自动化学院, 北京 100081) |
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| 摘 要： | 针对图像去噪的问题,提出一种基于自适应小波阈值去噪的算法.该方法根据噪声在小波变换下的特性自适应确定小波分解的阈值,并将去噪图像的峰值信噪比作为性能指标,采用中点法进行寻优,得到最优的阈值参数.该方法具有自适应性强、算法简单、去噪效果好等特点.通过实例表明,该方法比原有的阈值去噪算法去噪效果更佳,使图像达到更良好的视觉...
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| 关 键 词： | 信息处理技术 自适应 小波变换 图像去噪 中点法 |
Self-adaptive Wavelet Threshold De-noising Method and Its Application in Image Processing |
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| LIN Jie,FU Meng-yin,LI Dao-ping.Self-adaptive Wavelet Threshold De-noising Method and Its Application in Image Processing[J].Acta Armamentarii,2011,32(7):896-900. |
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| Authors: | LIN Jie FU Meng-yin LI Dao-ping |
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| Affiliation: | (School of Automation, Beijing Institute of Technology, Beijing 100081，China) |
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| Abstract: | For the problem image de-noising, a new method based on self-adaptive wavelet threshold algorithm was proposed. It can decide the threshold of wavelet analysis automatically according to the noise characteristics in wavelet transform, then takes PSNR as a function of filter parameter and acquires the optimal threshold parameter by using midpoint method. It has the strong self-adaptation, simple calculation，good de-noising result and so on. Experiment results show that this new method is much better than original threshold de-noising algorithms and achieves better visual effect. |
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| Keywords: | information processing self-adaptive wavelet transform image de-noising midpoint method |
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