发明名称 Method, apparatus, and program for image processing capable of effectively preventing and detecting tampering, and a medium storing the program
摘要 An image processing apparatus includes an acquiring mechanism configured to acquire an original document image, a dividing mechanism configured to divide the original document image acquired by the acquiring mechanism into a plurality of areas arranged in symmetry with respect to a center point of the original document image when the original document image is rotated centering around the center point of the original document image, a generating mechanism configured to generate verification data corresponding to the plurality of respective areas divided by the dividing mechanism, and an embedding mechanism configured to embed the verification data to the original document image in an identical scanning direction in a manner of point symmetry with respect to the center point of the original document image and to generate an encoded document image including the verification data.
申请公布号 US7426284(B2) 申请公布日期 2008.09.16
申请号 US20050144718 申请日期 2005.06.06
申请人 RICOH COMPANY, LTD. 发明人 ISHII MASAKI
分类号 G06K9/00;H04N1/32 主分类号 G06K9/00
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