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Patent Searching and Data


Title:
画像処理装置及びその方法
Document Type and Number:
Japanese Patent JP4109725
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To make it possible to curtail the amount of data to be converted, if the amount of image data to be processed increases, by switching the horizontal direction and the vertical direction of the row of plural units of ID information obtained by a means to convert ID of each dot pattern, using a means to convert HV. SOLUTION: Density data which is output from an addition part 101 is quantized by a quantization part 105, then the dot pattern of the quantized data is identified using a typical color table 106, and ID information on the dot pattern is output. Next, the ID information is rearranged in the alignment direction of nozzles on a recording head using line memory 109 at a first HV conversion part 108. That is, the row of the units of the ID information aligned in the main scan direction (H direction) is converted to the subscan direction (V direction). After that, this ID information is entered to a pattern table 110, then a dot pattern to be output from the recording head is output, and a blocked dot pattern is converted from H to V in units of each block and the HV converted dot pattern blocks are stored in block memory 112.

Inventors:
Yuji Konno
Nao Ishikawa
Application Number:
JP10969796A
Publication Date:
July 02, 2008
Filing Date:
April 30, 1996
Export Citation:
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Assignee:
Canon Inc
International Classes:
B41J2/01; B41J5/30; B41J2/07; B41J2/505; B41J2/52; G06F3/12; H04N1/23; H04N1/46
Domestic Patent References:
JP5075873A
JP62255153A
Attorney, Agent or Firm:
Yasunori Otsuka
Kenichi Matsumoto