发明名称 BLACK WHITE IMAGE COMPRESSION HAVING PRINT DENSITY CONTROL
摘要 A scaling system for compressing a bitonal image that has print density control. A system is disclosed that comprises: a pixel reduction system that generates a scaled image by reducing pixel pairs down to single scaled pixel based on a set of scaling rules; and a line density control system that allows the scaled image to be made lighter, normal or darker by changing the scaling rules.
申请公布号 US2009067754(A1) 申请公布日期 2009.03.12
申请号 US20080268556 申请日期 2008.11.11
申请人 PRAKASH RAVINDER 发明人 PRAKASH RAVINDER
分类号 G06F3/12;G06K9/32;G06K9/36;G06T3/40;H04N1/387 主分类号 G06F3/12
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