几种常见图像平滑技术的研究

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一、基于PDEs的图像平滑方法传统的图像平滑算法如均值滤波、中值滤波和高斯滤波等,由于不考虑图像的形状特征,其平滑结果等价于传导系数为常量的热扩散方程,属于各向同性扩散,所以在去噪的同时也模糊甚至破坏了图像的边缘。与热扩散模型相比较,各向异性扩
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