发明名称 |
Image processing apparatus, image forming apparatus, image processing method and recording medium on which image processing program is recorded |
摘要 |
An image processing apparatus that is capable of determining a document size with high accuracy, even when a device for detecting the document size is not placed therein and an input operation of the document size by a user is eliminated is provided. A page background determining section extracts candidates for page backgrounds from input document image data and determines the number of page background types. A white pixel counting section counts the number of white pixels from input document image data. A document size determining section determines the document size of the input document image data, based on the number of page background types determined by the page background determining section, a page background density value which is the lowest density value in one or a plurality of page background areas determined to be page backgrounds, and the number of white pixels extracted by the white pixel counting section. |
申请公布号 |
US8411322(B2) |
申请公布日期 |
2013.04.02 |
申请号 |
US20090548179 |
申请日期 |
2009.08.26 |
申请人 |
KUBOTA KAZUHISA;SHARP KABUSHIKI KAISHA |
发明人 |
KUBOTA KAZUHISA |
分类号 |
G06K15/00;G06K9/00;G06K9/34;G06T5/00;H04N1/40 |
主分类号 |
G06K15/00 |
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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