Potassium salt flotation froth image segmentation method based on multi-scale feature extraction and fusion

The embodiment of the invention provides a sylvite flotation froth image segmentation method based on multi-scale feature extraction and fusion, and belongs to the technical field of image processing, and the method specifically comprises the steps: collecting a froth image in a sylvite roughing process, marking a plurality of pixel points of each froth edge in the froth image, obtaining an area where the froth is located, and obtaining a froth image; after a semantic segmentation label image is obtained, an original data set is constructed by the foam image and the semantic segmentation label image, samples of the original data set are expanded, and the original data set is divided into a training set and a test set; constructing a flotation froth image segmentation deep neural network model; taking the training set as input, and training the flotation froth image segmentation deep neural network model; and obtaining a to-be-segmented flotation froth image, cutting the to-be-segmented flotation froth image t