Hough变换检测直线

用于hough变换函数来检测图像中的直线。

hough变换的数学表达式:

其中,rho-原点到直线的距离;theta是直线和X轴之间的夹角;x和y分别是直角坐标系的坐标。
hough函数的常见调用方式:
其中,BW是二值图像;H是hough函数返回的变换矩阵;theta和rho是返回的角度和距离向量。
houghpeaks函数的常见调用方法:
其中,H是hough函数返回的变换矩阵;numpeaks是极值点个数;peaks是返回的极值点的坐标。
houghlines函数的常见调用方法:
其实,BW是输入的二值图像;theta和rho是角度和距离向量;peaks是houghpeaks函数返回的极值点的坐标;lines是返回的结构数组,包含直线端点的信息。

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