| 张天瑜.基于维纳滤波的小波图像去噪算法研究[J].井冈山大学自然版,2011,(1):92-96 |
| 基于维纳滤波的小波图像去噪算法研究 |
| RESEARCH ON WAVELET IMAGE DENOISING ALGORITHM BASED ON WIENER FILTER |
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| DOI： |
| 中文关键词: 图像去噪 小波变换 阈值 阈值函数 维纳滤波 |
| 英文关键词: image denoising wavelet transform threshold threshold function wiener filter |
| 基金项目: |
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| 中文摘要: |
| 图像在采集、获取以及传输的过程中,往往要受到噪声的污染,形成噪声图像。图像去噪是图像处理领域中的一个重要环节。为了对含有高斯白噪声的图像进行去噪,在Donoho提出的小波阈值去噪算法的基础上,提出一种基于维纳滤波的小波图像去噪算法,利用维纳滤波后剩下的信号来计算噪声的标准方差。仿真结果表明,与Donoho提出的鲁棒中值算法相比,该算法能够有效地抑制高斯白噪声,更好地保留图像的边缘细节。 |
| 英文摘要: |
| Image is often polluted by noise in the course of collection,acquisition and transmission,which becomes noisy image.Image denoising is an important step in the field of image processing.Based on the wavelet threshold denoising algorithm proposed by Donoho,a wavelet image denoising algorithm based on Wiener filter is proposed to denoise the image with Gaussian white noise.The noise standard deviation is calculated by the remaining signal of Wiener filter.The simulation results show that,the proposed algorith... |
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