Morphological watershed transform is a mathematical morphology image segmentation method. It can access an accurate verge. That is continuous, closed single-pixel width verge.

形态学分水岭变换是一种数学形态学图像分割方法，它可以得到精确的边缘，即连续、封闭、单象素宽的边缘。

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The following illustration shows the output of a single pixel-width line that falls in the middle of a device pixel.

下图显示在设备像素中间的单像素宽度线条的输出。

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All of a sudden, it seemed that there was a conceptually easy way to make a single website look good on multiple screen sizes just worry about the pixel width of the viewport.

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