Single image super-resolution processing method and system

A single image super-resolution processing system, comprising:

• an upsampling module configured to perform edge direction-based upsample on an input image to be processed to obtain a target resolution image;
• a residual image generation module configured to input the target resolution image obtained by upsampling into one or more lookup tables to obtain a residual image, wherein the one or more lookup tables hold residual image information;
• and
• an addition module configured to add the target resolution image obtained by upsampling to the residual image to obtain a super-resolution image.

A computer-readable storage medium, wherein the computer-readable storage medium stores computer executable commands which are executed by a processor to implement the following steps:

• inputting an image to be processed and performing edge direction-based upsampling on the image to obtain a target resolution image;
• inputting the target resolution image obtained by upsampling into one or more lookup tables to obtain a residual image, wherein the one or more lookup tables store residual image information;
• and
• adding the target resolution image obtained by the upsampling to the residual image to obtain a super-resolution image.