发明名称 |
Document color determining apparatus, image processing apparatus, document color determining method and computer readable medium stored document color determining program |
摘要 |
A color determining apparatus which determines whether an document is a color document or a monochrome document based on image data of the document including a plurality of pixel data, includes a pixel color determination part which performs color determination of pixels based on a luminance component value and a color component value of the pixel data; a pixel color re-determination part which set one of the pixels determined to be a color pixel by the pixel color determination part a target pixel in turn, and at a time when a plurality of filters having different outline shapes are applied to the target pixel, performs color re-determination of the target pixel according to whether all of the pixels included in the filter are determined to be color pixels or not by the pixel color determination part; and a first document color determination part that determines whether the document is color or monochrome by comparison of a number of the pixels determined to be color pixels by the pixel color re-determination part and a reference value set in advance. |
申请公布号 |
US8417027(B2) |
申请公布日期 |
2013.04.09 |
申请号 |
US20100873785 |
申请日期 |
2010.09.01 |
申请人 |
TAKESHITA GO;NEC ACCESS TECHNICA, LTD |
发明人 |
TAKESHITA GO |
分类号 |
G06K9/00;G06K9/34 |
主分类号 |
G06K9/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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