简体中文 繁体中文 英语 法语 德语 西班牙语 Sobel operator according to the pixel point up and down, left and right adjacent pixels gray weighted difference, at the edge of this phenomenon to detect the edge of the edge. The noise has a smooth effect, providing a more accurate edge direction information, edge positioning accuracy is not high enough. When the accuracy requirement is not very high, it is a kind of common edge detection method. The code with Sobel edge detection, check the cell edge, there is a fig.

sobel边缘检测\cell.tif
.............\ex_17_3.m
sobel边缘检测

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