发明名称 IMAGE READER AND CONTROL METHOD OF IMAGE READER
摘要 <P>PROBLEM TO BE SOLVED: To provide an image reader capable of performing smoothing processing that reduces image stripes and preventing an image from being out of focus without making MTF (Modulation Transfer Function) too low. <P>SOLUTION: The image reader has a means for reading a standard white board and preparing shading correction data, and a means for dividing an area in a main scan direction into a plurality of areas. The image reader also has a means for making parameters in one divided area different from parameters in the other area of the divided areas and performing smoothing processing of image data in each area. <P>COPYRIGHT: (C)2008,JPO&INPIT
申请公布号 JP2008147963(A) 申请公布日期 2008.06.26
申请号 JP20060332457 申请日期 2006.12.08
申请人 CANON INC 发明人 SAKAI TAKASHI
分类号 H04N1/19;G06T1/00;G06T5/00;H04N1/401 主分类号 H04N1/19
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