웨이브렛 변환을 이용한 블록부호와 영상에서의 블록화 현상 제거

Reduction of blocking effect in block coded images using wavelet transform

This paper describes a new method for reducing blocking effet in block coded images using wavelet transform. In this method, all processings are one-dimensionally executed based on the fact that blocking effect occures both horizontal and vertical directions in image. Experimental results show that the proposed method yields PSNR improvement and better subjective quality.