发明名称 |
Image processing apparatus, method and computer program product |
摘要 |
An image reading unit reads an original image, one main scan line by one main scan line, in a sub-scan direction. A window setting unit sets a measuring window in a bit-map formation of image data obtained through the image reading unit, in a manner in which the measuring window moves in a predetermined manner so that the measuring window appropriately includes pixels of an oblique line image which is formed in the bit-map formation of image data as a result of being read through the image reading unit. A position error measuring unit processes image data defined by the measuring window, and, thus, measures an error of the oblique line image formed in the bit-map formation of obtained image data between a predetermined reference state and an actual reading state.
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申请公布号 |
US6122412(A) |
申请公布日期 |
2000.09.19 |
申请号 |
US19990305743 |
申请日期 |
1999.05.06 |
申请人 |
RICOH COMPANY, LTD. |
发明人 |
NOGUCHI, KOICHI;TAKEMOTO, HIDEYUKI;WADA, SHINICHIRO |
分类号 |
H04N1/047;H04N1/193;(IPC1-7):G06K9/20 |
主分类号 |
H04N1/047 |
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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