De-ringing using morphological filters for waveletbased compressed image

  title={De-ringing using morphological filters for waveletbased compressed image},
  author={Wen-Chien Yen and Yen-Yu Chen},
  journal={Proceedings of the Eighth International Symposium on Signal Processing and Its Applications, 2005.},
JPEG2000 Standard is a new generation image compression technique, enabling encoding images at low bit-rates with acceptable quality. Since JPEG2000 is based on wavelet transforms, the reconstructed image will contain perceivable ringing artifacts in medium and low bit-rate regimes of lossy compression. This work utilizes a quad-tree partitioning scheme for post-processing the reconstructed image in a spatially varying manner and presents a voting strategy to determine a set of morphological… CONTINUE READING