Segmentation method, recognition method, medium and equipment for blue-green algae image

The invention relates to a segmentation method, a recognition method, a medium and equipment for a blue-green algae image, and the method comprises the steps: obtaining original images of a plurality of water samples and pre-processed images of the original images, obtaining an original image gray-scale map and a pre-processed image gray-scale map, and obtaining a binary image and a preliminary segmentation contour map corresponding to the pre-processed images; fusing the original image grey-scale map, the preprocessed image grey-scale map and the preliminary segmentation contour map to obtain a three-channel color map, constructing and training a segmentation network model taking the three-channel color map as input and the blue-green algae contour image as output, and finally obtaining an original image of a current water body sample and a corresponding current three-channel color map. And inputting the current three-channel color image into the segmentation network model to obtain each blue-green algae con