Title:
【発明の名称】グレーコンポジットプルーフの生成方法及び装置
Document Type and Number:
Japanese Patent JP2947939
Kind Code:
B2
Abstract:
PCT No. PCT/DE96/00423 Sec. 371 Date Jan. 9, 1997 Sec. 102(e) Date Jan. 9, 1997 PCT Filed Mar. 7, 1996 PCT Pub. No. WO96/27976 PCT Pub. Date Sep. 12, 1996A method and apparatus are provided for producing a rastered gray composite proof in which the color values of the chromatic printing inks "cyan", "magenta" and "yellow" are united to brightness-equivalent gray scale values for simple advance monitoring of a color printing. The gray scale values to be printed on the gray composite proof are corrected compared to the gray scale values of the chromatic printing inks for the color printing represented by the color separation values, being corrected to different percentage parts that respectively correspond to the subjectively sensed brightness impression of the chromatic printing inks relative to "black". The color separation values of the chromatic printing inks are converted into individual bit maps by different raster functions such that the recorded pixels of the chromatic printing inks lie next to one another on the recording material. The individual bit maps of the chromatic printing inks are united to form an overall bit map by an OR operation. The control bits of the overall bit map control a black-and-white printer that prints the gray composite proof on the recording material pixel-by-pixel, whereby the control bits of the overall bit map decide whether the pixel is printed as raster points or parts of the raster points or is not printed.
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Inventors:
TOOMASU KEERAA
ANDOREASU NETSUTOHORUN
KURAUSU RANGU
ANDOREASU NETSUTOHORUN
KURAUSU RANGU
Application Number:
JP52588196A
Publication Date:
September 13, 1999
Filing Date:
March 07, 1996
Export Citation:
Assignee:
HAIDERUBERUGAADORUTSUKUMASHIINEN AG
International Classes:
B41J2/525; G03F3/08; G03F3/10; H04N1/40; H04N1/52; H04N1/60; (IPC1-7): H04N1/52; B41J2/525; G03F3/10
Attorney, Agent or Firm:
Toshio Yano (3 outside)