Abstract: The present application discloses a method, device, and system for processing a medical image. The method includes obtaining a first image corresponding to a to-be-processed image, obtaining a second image corresponding to the to-be-processed image, wherein the first image and the second image are obtained in response to an image degradation processing being performed with respect to the to-be-processed image, and an image quality of the first image and an image quality of the second image are different. The method further includes obtaining image structural information corresponding to the to-be-processed image, and performing an image fusion processing with respect to the first image and the second image to image fusion based at least in part on the image structural information corresponding to the to-be-processed image, wherein a target image is obtained based at least in part on the image fusion processing, and the target image corresponds to the to-be-processed image.