发明名称 Image processing apparatus and method for determining arrangement of dot count or recording material amount by error diffusion process
摘要 An image processing apparatus quantizes multi-level image data of n colors, where n>=2, by performing an error diffusion processing. The image processing apparatus includes: a dot arrangement determining unit that determines either one of an essential dot count and an essential recording material amount when the multi-level image data of n colors is converted into multi-level image data of m colors, where n>m>=1, by the error diffusion processing; and a color arrangement determining unit that performs the error diffusion processing on each color component of the multi-level image data of n colors, calculates either one of a dot count and a recording material amount for each color component, and determines an arrangement of either one of the dot count and the recording material amount for each color component within a range of a corresponding one of the essential dot count and the essential recording material amount determined by the dot arrangement determining unit.
申请公布号 US8564838(B2) 申请公布日期 2013.10.22
申请号 US200913119368 申请日期 2009.09.14
申请人 YAMAGUCHI ARATA;SAGAE HIROAKI;KIMURA TAKASHI;YOSHIDA MASAKAZU;RICOH COMPANY, LIMITED 发明人 YAMAGUCHI ARATA;SAGAE HIROAKI;KIMURA TAKASHI;YOSHIDA MASAKAZU
分类号 H04N1/40 主分类号 H04N1/40
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