发明名称 Angle avoidance for color halftone screens
摘要 A method for avoiding objectionable moiré in a color image can include identifying a problematic excitation angle associated with a problematic excitation in a marking process or in the color image and selecting a set of at least two halftone screens for rendering at least two separations of the color image wherein the set of screens is selected to avoid including significant screen fundamental, harmonic and beat frequencies at angles closer than about 1 degree of the identified problematic excitation angle. Halftoning the color image according to the selected set of screens avoids objectionable moiré associated with the problematic excitation.
申请公布号 US2006232822(A1) 申请公布日期 2006.10.19
申请号 US20050108497 申请日期 2005.04.18
申请人 XEROX CORPORATION 发明人 WANG SHEN-GE;XU BEILEI;LOCE ROBERT P.
分类号 H04N1/409 主分类号 H04N1/409
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