Junghyeun HWANG

Reversible Implementations of Irreversible Component Transforms and Their Comparisons in Image Compression
Junghyeun HWANG  Hisakazu KIKUCHI  Shogo MURAMATSU  Kazuma SHINODA  Jaeho SHIN 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2012/04/01
Vol. E95-A  No. 4  pp. 824-828
Type of Manuscript: LETTER
Category: Digital Signal Processing
Keyword: 
component transform,  reversible transform,  image compression,  LU factorization, 
  Summary |  Full Text:PDF (131.6KB)
An Optimum Design of Error Diffusion Filters Using the Blue Noise in All Graylevels
Junghyeun HWANG  Hisakazu KIKUCHI  Shogo MURAMATSU  Jaeho SHIN 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2010/08/01
Vol. E93-A  No. 8  pp. 1465-1475
Type of Manuscript: PAPER
Category: Digital Signal Processing
Keyword: 
digital halftoning,  error diffusion,  blue noise,  power spectrum,  binary pattern power spectrum matching, 
  Summary |  Full Text:PDF (2MB)