Light path stability detection method of laser cutting machine

The invention relates to the technical field of image processing, in particular to a light path stability detection method of a laser cutting machine. The method comprises the following steps: obtaining a matched standard edge point of each real-time edge point according to a first distance corresponding to each standard edge point, a first direction included angle corresponding to each standard edge point, a first distance corresponding to each real-time edge point and a first direction included angle corresponding to each real-time edge point; according to the edge main direction corresponding to each real-time edge point, the edge main direction corresponding to the matched standard edge point of each real-time edge point, the first distance corresponding to each real-time edge point and the first distance corresponding to the matched standard edge point of each real-time edge point, obtaining a direction stability representation value corresponding to each real-time edge point; and detecting the light pat