Abstract: In this paper is described a method for automatic analysis of missing block neighbor area. The analysis, which is based on Canny edge detection and calculation of homogeneity coefficient in missing block neighbor area, provides suboptimal rectangular support area for each block. The suboptimal support area for each block is used in Selective Extrapolation algorithm. Paper includes experiment results of proposed method which are compared with results of selective extrapolation where the support area size is fixed for all blocks.

Keywords: Image processing, selective extrapolation, Canny edge detection, missing blocks concealment.

Link:

ON A MODIFICATION OF THE FREQUENCY SELECTIVE EXTRAPOLATION METHOD

Gevorg Karapetyan and Hakob Sarukhanyan

http://www.foibg.com/ijima/vol01/ijima01-2-p05.pdf