发明名称 Halftoning method and apparatus using templates indexed by code
摘要 Techniques are provided that use one or more templates to improve the printing of non-saturated colored text and lines. Such templates are predetermined, fixed patterns which can be indexed or looked up via a code word with a fewer number of bits than in the corresponding template. Thus, such templates are used to increase the resolution or effective resolution of a display. In an embodiment, each template location represents a 4×4 region of binary pixels. The number of possibilities of template values is 2^(4*4) or 65,536. However, in accordance with an embodiment, only 256 of these 65,536 templates are available and are indexed by an 8 bit contone video value.
申请公布号 US8553286(B2) 申请公布日期 2013.10.08
申请号 US201213490374 申请日期 2012.06.06
申请人 WILLIAMS LEON;ELECTRONICS FOR IMAGING, INC. 发明人 WILLIAMS LEON
分类号 H04N1/405;G06K15/00;G06T5/00;G06T9/00;H04N1/409 主分类号 H04N1/405
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