Abstract
We propose the new method about high resolution image expansion algorithms used DCT orthogonal algorithm and restoration algorithm based on super restoration. At first, image is divided into small blocks and transformed using DCT algorithm. Next, image is restored by an super resolution by DCT, in the case that a high frequency component is lacking. The Gerchberg-Papoulis repetition method is used as an super resolution and 1 dimension DCT is used to speed up the orthogonal transform. At last, we show the image magnification examination results using SCID. We can conclude that SN ratio is improved, using our proposed method.
