发明名称 GRADATION PROCESSOR
摘要 PROBLEM TO BE SOLVED: To provide a gradation processor which can obtain good print out results having no rounding structure by generating mesh processing image data including halftone where gradation skip of halftone data generated by the logic of necessary and sufficient minimum operating speed is suppressed in a low resolution printer which does not produce approximate output but copies commercial printing completely. SOLUTION: One pixel of a mechanism performing n-value printing is virtually divided into necessary minimum n-1 pieces of subpixels wherein the threshold calculation coordinates of vice-next pixels take such a position as they do not overlap on the x-axis or the y-axis, and the value of n-value printing is determined by the accumulated value of subpixels. COPYRIGHT: (C)2007,JPO&INPIT
申请公布号 JP2007129440(A) 申请公布日期 2007.05.24
申请号 JP20050319771 申请日期 2005.11.02
申请人 CANON INC 发明人 SHOJI ATSUYUKI
分类号 H04N1/405;B41J2/52;G06T5/00 主分类号 H04N1/405
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