Title:
HALFTONE THRESHOLD GENERATION APPARATUS AND METHOD
Document Type and Number:
Japanese Patent JPS5932037
Kind Code:
A
Abstract:
A circuit for producing a "knight ordered dither" half- . tone pattern for a CRT and a "double spiral" halftone pattern for a xerographic printer is described. The circuit comprises a RAM for storing the threshold values, a comparator, and supporting addressing and logic parts. Also described are a program for allowing the operator to interactively generate threshold patterns, and several knight tour patterns specifically designed for a CRT using interlaced rasters.
Inventors:
ARAN EMU ROBAATSU
ANDORIYUU SANGUSUTAA
ZORUTAN SUTOROORU
ANDORIYUU SANGUSUTAA
ZORUTAN SUTOROORU
Application Number:
JP15164082A
Publication Date:
February 21, 1984
Filing Date:
August 31, 1982
Export Citation:
Assignee:
XEROX CORP
International Classes:
G06F3/153; G06T5/00; G09G1/06; G06F3/12; G09G5/00; G09G5/10; G09G5/36; H04N1/405; (IPC1-7): G06F3/12; G06F3/14; G09G1/06
Domestic Patent References:
| JPS54144141A | 1979-11-10 | |||
| JPS55108080A | 1980-08-19 |
Attorney, Agent or Firm:
Masu Kobori