| 彩色含噪图像的空间多分辨力阈值收缩求解方法 |
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| 引用本文： | 王小璠.彩色含噪图像的空间多分辨力阈值收缩求解方法[J].电视技术,2011,35(16):37-39. |
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| 作者姓名： | 王小璠 |
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| 作者单位： | 华南理工大学电力学院,广东广州,510640 |
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| 基金项目： | 国家自然科学基金项目(60972133) |
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| 摘 要： | 采用了一种新的基于小波变换的自适应多阈值图像去噪方法——空间多分辨力阈值收缩去噪法,方法首先根据信号在不同子带和不同方向上的分布特性选择不同的最佳噪声阈值,然后对彩色图像fC提取3幅分量图像fR,fG,fB,采用不同阈值分别对每幅分量图像进行去噪,最后重建去噪后的RGB合成图像。通过大量的实验证明,空间多分辨力阈值收缩去噪法能针对不同信号成分采用不同的噪声阈值,与硬阈值去噪方法和软阈值去噪方法相比,不仅提高了去噪后图像的信噪比,也使图像更加清晰,并能更好地适合人眼的主观视觉特性,可在客观和主观上同时获得更佳的去噪效果。
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| 关 键 词： | 彩色图像 空间多分辨力去噪 阈值收缩 |
Spatial Multi-resolution Shrinkage Thresholding for Denoisy Color Image |
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| WANG Xiaofan.Spatial Multi-resolution Shrinkage Thresholding for Denoisy Color Image[J].Tv Engineering,2011,35(16):37-39. |
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| Authors: | WANG Xiaofan |
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| Affiliation: | WANG Xiaofan (School of Electric Power,South China University of Technology,Guangzhou 510640,China) |
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| Abstract: | A new denoising method of adaptive spatial multi-resolutin shrinkage thresholding algorithm is presented.Optimum all thresholds are chosen according to different characteristris in different scales and different directions.Then three component images fR,fG,fB are derived from a color image fC for denoising.Finally the denoised RGB image are recovered.Experiments are carried out to verify the SNR and HVS coherence.And comparing with those of the hard-threshold denoising and the soft-threshold deniosing,this ... |
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| Keywords: | color image spatial multi-resolutin denoising shrinkage threshold |
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