Animal husbandry water pollution detection method based on machine vision

The invention relates to the technical field of threshold segmentation, in particular to an animal husbandry water pollution detection method based on machine vision. The method comprises the following steps of: obtaining a first algae possibility degree according to a gray value and an analysis value of a pixel point in a water area gray image, and obtaining an algae stacking degree of the pixel point according to a distance between the pixel point in the image and a boundary and a gray value difference and an analysis value difference between each pixel point and the pixel point on the boundary; obtaining a second algae possibility degree of the pixel points in the water area gray scale image by combining the gray scale distribution difference between the pixel points and the preset extension window; adjusting a segmentation threshold value in a water area gray scale image obtained through a threshold value segmentation algorithm based on the algae first possibility degree and the algae second possibility d