Title :
An error diffusion technique with reduced directional hysteresis
Author :
Chan, Yuk-Hee ; Kwong, H.T. ; Lo, K.T. ; Li, C.K.
Author_Institution :
Dept. of Electron. & Inf. Eng., Hong Kong Polytech. Univ., Kowloon, Hong Kong
Abstract :
In this paper, a digital halftoning method is proposed to diffuse error with a more symmetric error distribution by making use of the concept of delayed decision. It can improve the diffusion performance by effectively reducing the directional hysteresis. A corresponding dot-overlap compensation scheme is also proposed to eliminate the bias in the gray scale of the printed images
Keywords :
error compensation; filtering theory; image processing; iterative methods; printers; quantisation (signal); delayed decision concept; digital halftoning method; dot-overlap compensation scheme; error diffusion technique; printed image gray scale bias; raster scan strategy; real time applications; reduced directional hysteresis; symmetric error distribution; Computer errors; Delay; Digital signal processing; Filters; Hysteresis; Ink; Multimedia systems; Pixel; Printers; Silicon;
Conference_Titel :
Circuits and Systems, 1999. ISCAS '99. Proceedings of the 1999 IEEE International Symposium on
Conference_Location :
Orlando, FL
Print_ISBN :
0-7803-5471-0
DOI :
10.1109/ISCAS.1999.779992
