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Patent Searching and Data

Document Type and Number:
Japanese Patent JP5607779
Kind Code:
Disclosed is a method of compressing an image to be stored in a memory to satisfy a memory requirement. A size of a region having a uniform colour in the image is determined. The determined size of the region is compared with the candidate values of the region size threshold. A value is selected from the candidate values as the region size threshold based on the comparison between the estimated data amounts to satisfy the region size threshold and the memory requirement. The edges constituting the region which satisfy the selected value of the region size threshold are compressed losslessly.

Dixon デシェン デン
Wen Tao Roux
Application Number:
Publication Date:
October 15, 2014
Filing Date:
March 19, 2013
Export Citation:
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Canon, Inc.
International Classes:
H04N1/41; H04N19/42
Attorney, Agent or Firm:
Yasunari Otsuka
Shiro Takayanagi
Yasuhiro Otsuka
Hideji Kimura
Shimoyama 治
Yukimitsu Nagagawa