Image segmentation method and device

The invention provides an image segmentation method and device, and relates to the technical field of image processing, and the method comprises the steps: obtaining a to-be-processed image, and dividing the to-be-processed image into a plurality of superpixel blocks according to the number of pixels contained in the to-be-processed image; performing iterative updating on the plurality of superpixel blocks by adopting a linear iterative clustering algorithm to obtain an initial segmentation image corresponding to the to-be-processed image; performing edge detection processing on the initial segmented image to obtain an edge detection image, and determining a segmentation threshold according to position information of each pixel point in the initial segmented image; and based on the segmentation threshold, performing threshold segmentation processing on the edge detection image to obtain a target segmentation image. According to the invention, segmentation precision and segmentation quality can be improved. 本发