Title:
画像読取装置の補正方法及び画像処理装置
Document Type and Number:
Japanese Patent JP5682351
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To accurately and easily correct reading distortion when an image reading device reads an image, without using an expensive measuring instrument.SOLUTION: A correction method for an image reading device comprises: by changing a direction of the device with respect to a reading region of a correction chart 20 having correcting patterns formed thereon, reading the correcting chart 20 at each direction, with the correcting patterns disposed in a plurality of different positions in the reading region, to obtain a plurality of image data; by extracting the correcting patterns from the plurality of image data obtained to compare the extracted same correcting patterns with each other, calculating a reading distortion amount corresponding to each reading position in the reading region; and correcting reading distortion of the image data based on the calculated reading distortion amount corresponding to each reading position.
Inventors:
野村 庄一
Application Number:
JP2011024543A
Publication Date:
March 11, 2015
Filing Date:
February 08, 2011
Export Citation:
Assignee:
コニカミノルタ株式会社
International Classes:
H04N1/19; G06T3/00; H04N1/00; H04N1/10; H04N1/107
Attorney, Agent or Firm:
Patent business corporation Mitsuaki international patent firm