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Patent Searching and Data


Title:
IMAGE PROCESSING METHOD AND IMAGE PROCESSING APPARATUS
Document Type and Number:
Japanese Patent JP2002077612
Kind Code:
A
Abstract:

To provide an image processing method and an image processing apparatus for allowing an error to be substantially accurately propagated at joints of blocks even when image data are divided into a plurality of blocks and each of them is subjected to an error diffusion processing simultaneously.

The image processing method and image processing apparatus comprise image data dividing means for dividing image data into a plurality of regions, divided error diffusing means for performing error diffusion processing for each divided region that was divided by the image data dividing means, virtual error generating means for generating a virtual error before starting of the divided error diffusing means, enlarged error diffusion processing means for enlarging an error matrix so as to use errors generated by adjacent divided error diffusing means, thus making it possible to obtain an effect that an error can substantially accurately be propagated at joints of blocks even when image data are divided into a plurality of blocks with each of them being subjected to the error diffusion processing simultaneously.


Inventors:
Noma, Mutsuaki
Morimatsu, Hiroyuki
Application Number:
JP2000000264993
Publication Date:
March 15, 2002
Filing Date:
September 01, 2000
Export Citation:
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Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
B41J2/52; G06T5/00; H04N1/405; (IPC1-7): H04N1/405; B41J2/52; G06T5/00
Attorney, Agent or Firm:
岩橋 文雄 (外2名)