发明名称 Image processing apparatus, image reading apparatus and image recording apparatus
摘要 An image processing apparatus for receiving image data composed of a plurality of pixels, extracting an area from an image based on the received data and detecting a type of an image included in the extracted area, includes means for calculating the ratio of pixels having a predetermined pixel value to pixels constituting the area, and detects the type of the image included in the area, based on the calculated ratio of pixels.
申请公布号 US2006109521(A1) 申请公布日期 2006.05.25
申请号 US20050283166 申请日期 2005.11.17
申请人 SHARP KABUSHIKI KAISHA 发明人 SHIMAZAWA YOHICHI
分类号 H04N1/40 主分类号 H04N1/40
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