Insulator crack detection method based on Canny operator two-dimensional threshold segmentation optimization

The invention discloses an insulator crack detection method based on Canny operator two-dimensional threshold segmentation optimization, and the method comprises the steps: photographing an insulatoron an overhead line, and inputting a photographed insulator image into a computer; preprocessing the shot insulator image by adopting a computer image processing technology, wherein the preprocessingcomprises the steps of weakening the background of the shot insulator image, graying, enhancing the contrast ratio, filtering and the like, so that the target insulator is more prominent in the image,the influence of noise on the image is reduced, and the image quality is optimized; finally, carrying out edge optimization on the insulator by adopting Canny operator two-dimensional threshold segmentation, so that the influence of noise is reduced, and the extracted detail features of the edge of the insulator are clearer; and identifying whether the insulator has cracks or not. The method canbe widely applied to power g