Biography
Biography: Zakharoff Andrey
Abstract
As a result of significant JPEG or MPEG loss compression and decompression some specific artifacts may turn up on an image, such as blocks of quadrates or false contours, they especially become ugly visible when the image is stretched on a bigger size of HDTV-panel.In this work we try to detect these artifacts, and reduce their visual perception (reduction) by smoothing, while saving natural edges untouched. The task of detection is completed with general histogram analyzing and it's comparison with some local features on the image. Also a measure of false edge smoothing efficacy is suggested and demonstrated with different combination of smoothing methods.