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JP2006050596A Expired / Lapsed JP ⏱️ 0.0 years remaining

Data processing method, data processing apparatus, dither pattern manufacturing method, and dither pattern

Assignee: Canon Inc
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Filing: 2005-07-06
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Granted: —
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Expires: 2025-07-06
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Abstract

Abstract Translated from Japanese 【課題】 異なる複数の色のインクを用い記録を行う際のグレインの発生を抑制しビーディングによる画質劣化を軽減できるディザパターンを提供する。 【解決手段】 斥力ポテンシャルの合計が計算される各閾値ドットの中で、例えば、閾値ドットDoが斥力ポテンシャルの合計が最も大きい場合、その移動前後の斥力ポテンシャルの変化を求め、移動前後で最も斥力ポテンシャルの合計が低くなる画素に閾値ドットDoを移動させる。このような処理を繰り返すことによって3プレーン全体の総エネルギーを下げることができ、3プレーンのディザパターンの重なりにおいて閾値ドット分布が、低周波数成分が少なく良好に分散された配置となる。 【選択図】 図7 PROBLEM TO BE SOLVED: To provide a dither pattern capable of suppressing the occurrence of grains when printing using a plurality of different color inks and reducing image quality deterioration due to beading. Among the threshold dots for which the total of repulsive potential is calculated, for example, when threshold dot Do has the largest total repulsive potential, a change in repulsive potential before and after the movement is obtained, and the most repulsive force before and after the movement is obtained. The threshold dot Do is moved to a pixel whose total potential is low. By repeating such processing, the total energy of the entire three planes can be reduced, and the threshold dot distribution in the overlap of the dither patterns of the three planes is an arrangement in which the low frequency component is small and is well distributed. [Selection] Figure 7

Inventors

  • 👤 Yoshitomo Marumoto
  • 👤 義朋 丸本

Bibliographic Details

Application Number —
Jurisdiction JP
Data Source google_patents
Last Synchronized 2026-11-09 11:51
CPC Classifications
G; G06; G06K; G06K15/00; H; H04; H04N; H04N1/00; H04N1/40; H04N1/405; H04N1/4051

Claims Analysis

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References Cited (Backward Citations)

JPH0418373A Cited
JPH08160602A Cited
JPH11150652A Cited
JP2001298617A Cited
JP2002144552A Cited
JP2003125219A Cited
JP2003202848A Cited

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