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基于DCT的图像去噪

于 2022-01-26 发布 文件大小:178.61 kB
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代码说明:

基于离散余弦变换对图像的噪声进行抑制。一般而言,我们认为图像的噪声在离散余弦变换结果中处在其高频部分,而高频部分的幅值一般很小,利用这一性质,就很容易实现图像的噪声抑制。当然,这也会同时失去图像的部分细节。本例子为基于离散余弦变换的图像去噪matlab程序。

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