A Design of an Interpolation Algorithm using the Adaptive Pseudomedian Filter

적응형 pseudomedian 필터를 이용한 보간 알고리즘의 설계

  • 채종석 (한양대학교 전자·컴퓨터공학부) ;
  • 권병헌 (유한대학 정보통신과) ;
  • 최명렬 (한양대학교 전자·컴퓨터공학부)
  • Published : 2001.06.01


Many techniques have been proposed for digital image enlargement, which use spatially neighbored pixels information in a still image. In this paper, we propose the digital image interpolation method that improves edge characteristics by selectively transposing the sub-windows of pseudomedian filter, which results in relatively better performance than others. We have simulated the proposed algorithm using Visual C++ and verified performance of the algorithm by PSNR(Peak signal Noise Ratio) and edge characteristics. Finally, we have designed the adaptive pseudomedian by using synopsys VHDL(Very high speed integrated circuit Hardware Description Language).