发明名称 |
Constraint correlation for computer to plate inkjet system |
摘要 |
<p>Printing masters are produced by use of an inkjet printing system.</p><p>The smallest halftone dot size which can be printed by the inkjet printing system is larger than the size of a pixel of the recording grid defined by the addressability of the printing device.</p><p>Inferior image quality and graininess caused by standard error diffusion algorithms in this system can be counteracted by using a constraint correlation error diffusion system.</p><p>Out of the complete set of all possible intensity level combinations for reproducing a pixel a subset is selected based upon the multilevel halftoning process of a quantized scalar value which is a function of at least one of the input pixel values of the corresponding colour component pixels.</p><p>Preferably the scalar value represents the brightness or ink amount allocations.
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申请公布号 |
EP1406433(A3) |
申请公布日期 |
2007.05.23 |
申请号 |
EP20030103376 |
申请日期 |
2003.09.12 |
申请人 |
AGFA GRAPHICS N.V. |
发明人 |
MINNEBO, LUC;VANDE VELDE, KOEN;DELABASTITA, PAUL |
分类号 |
B41J2/01;H04N1/405;B41C1/10;H04N1/52 |
主分类号 |
B41J2/01 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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