最后以滤波窗口内像素的灰度排序均值(ROM)替换噪声点的灰度值。

If it is a noise point, the value is replaced by rank-ordered mean (ROM) of the filter window during noise removal.

youdao

然后各子图内像素灰度值以低阶多项式表示，依最小二乘准则以多项式逼近原图像的子图像。

Then, the image grey level of every subimage is approximated by low-order polynomial according to least-square criterion.

youdao

In my in my area of research, it's common for us to want to process about 100 images a second in order to get real time display. Each image has about a million elements in it. I 've got to process about a half a gig of data a second in order to get anything out of it.

在我们的研究领域内，我们经常要在一秒钟内处理大概,100张图片以获得实时显示,每个图片大概包括了100万像素,因此我必须在1秒内,处理半个G的数据,来获取我想要的。

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