Solar photovoltaic module infrared image segmentation method

The invention discloses an infrared image segmentation method for a solar photovoltaic module; the method comprises the steps: collecting an infrared original image of the photovoltaic module of a solar photovoltaic power station through an infrared imager; performing Gaussian filtering processing on the infrared original image to obtain an infrared image; counting the pixel ratio of the infrared image through the color histogram, and judging whether the environment information contained in the infrared image is complex or not according to the pixel ratio; if not, segmenting the judged infrared image by using OTSU; if the infrared image is complex, detecting the infrared image by using a Sobel operator to obtain an image contour; counting the pixel ratio of the image contour through the color histogram, and judging whether the edge information of the image contour is complex or not according to the pixel ratio of the image contour; if the image is complex, adopting the Sobel operator again to detect the image