Abstract
A good halftoning output should bear a blue noise characteristic contributed by isotropically-distributed isolated dots. Multiscale error diffusion (MED) algorithms try to achieve this by exploiting radially symmetric and noncausal error diffusion filters to guarantee spatial homogeneity. In this brief, an optimized diffusion filter is suggested to make the diffusion close to isotropic. When it is used with MED, the resulting output has a nearly ideal blue noise characteristic.
Original language | English |
---|---|
Article number | 6257485 |
Pages (from-to) | 413-417 |
Number of pages | 5 |
Journal | IEEE Transactions on Image Processing |
Volume | 22 |
Issue number | 1 |
DOIs | |
Publication status | Published - 2 Jan 2013 |
Keywords
- Blue noise
- error diffusion
- halftoning
- multiscale error diffusion (MED)
- printing
ASJC Scopus subject areas
- Software
- Computer Graphics and Computer-Aided Design