Image processing method and device and storage medium

The invention relates to an image processing method and device and a storage medium, and belongs to the field of image processing, and the method comprises the steps: obtaining a to-be-processed image; compressing the to-be-processed image to obtain a compressed image; generating a plurality of prediction tensors of the compressed image, wherein the plurality of prediction tensors comprise a slope tensor and an intercept tensor corresponding to each channel in three primary color channels of the compressed image; each prediction tensor is amplified to obtain a plurality of target tensors, so that the number of pixels corresponding to each target tensor is the same as the number of pixels of the to-be-processed image, and the plurality of target tensors comprise a target slope tensor and a target intercept tensor of each channel in the three-primary-color channels; and generating a shadow-removed image of the to-be-processed image according to each target slope tensor, each target intercept tensor and the to-b