The edge detection of numericpicture has a very important function in the image segmentation, pattern recognition, and machine vision and so on.
数字图像的边缘检测在图像分割、模式识别、机器视觉等中有很重要的作用。
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To generate the picture on a computer screen, the computer assigns every pixel three numeric values that correspond to the amount of red, green or blue in the color the pixel displays.