1. An image processing method, comprising computer-implemented steps of: dividing an original image into image blocks according to a preset size; obtaining a target image block after performing reduction processing for each of the image blocks according to a reduction factor; obtaining coordinates of the target image block according to the reduction factor and coordinates of the image block; combining the target image blocks according to the coordinates of the target image blocks; copying at least one column/row of pixels in an edge of a first target image block and adding the at least one column/row of pixel to an edge of a second target image block; the edge of the second target image block being against the edge of the first target image block, and the at least one column/row of pixels being connected with the second target image block; the first target image block and the second target image block referring to two adjacent target image blocks respectively displaying the combined target image blocks.