Method for eliminating edge jags of image with super resolution

The present invention relates to a method for eliminating edge jags of an image with super resolution. The method is used for implementing amplification and conversion from low resolution to high resolution. The method comprises: detecting an edge of received image data, and storing the image data as an original edge pixel frame; then, separately amplifying the original edge pixel frame by a factor of two in a horizontal direction and a vertical direction, maintaining information about original edge pixels, and replacing values of amplified pixels to be interpolated with a 0 gray scale; and then, performing, by using a specific interpolation rule, interpolation compensation on the pixels to be interpolated temporarily replaced with the 0 gray scale along the edge direction of the original edge pixels, so as to significantly reduce the phenomenon of jags of an output image and well maintain detail features. The method of the present invention is simple, requires a small quantity of calculations, has a high operation speed, and can effectively reduce costs.