Finally, it gave an image de-noising algorithm of coherence enhancing diffusion, which used wavelet coefficients to estimate the image edge according to the wavelets time-frequent analysis function.

针对相干增强扩散计算扩散矩阵较慢的缺点，提出了一种用小波系数估计图像边缘方向的相干增强扩散图像降噪算法。

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Several experiments were finished and then find the explanation for the diffusion of the Ag clusters towards the oil edge.

并对银原子及其团簇向样品边缘扩散的物理机制进行了解释。

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Anisotropic diffusion has good effect on reducing noise and preserving edge, in fact its an iterative process. An important question is to decide when the process should be stopped.

各向异性扩散在抑制噪声与保留边缘方面具有良好的性能，它实际上是一个微分迭代的过程，一个重要问题是这种迭代过程何时停止。

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