文件名称:laser_divergence
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该程序用于求激光的发散角，首先通过图像处理获取激光光斑的边缘，然后用最小二乘法进行拟合得到图像中心和半径，进而求得光束发散角。-The program used to find the laser divergence angle, first get the edge of the laser spot by image processing, and then fitting the image center and the radius, then obtain the beam divergence angle by the least squares method.
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laser_divergence.m