Title:
画像読み取り装置
Document Type and Number:
Japanese Patent JP4117855
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To suppress an image data deviation caused by the variation of the scanning speed by detecting the scanning speed of a scanning means, so generating speed data expressing scanning speed, making the data correspond to image data at the time of obtaining speed data and applying processing for correcting the reading deviation caused by speed variation to image data based on corresponding speed data and image data. SOLUTION: Shading-corrected image data and speed data from a speed detecting sensor E33 are inputted to inter-line correcting memories E23 and E24. The inter-line memories E23 and E24 are a delay memory for delay position difference R, G image data with a G-detecting line in a carriage scanning direction so as to execute positioning with B-image data. Besides, the deviation within one line in RGB data of image data outputted from the inter-line correcting memories E23 and E24 is corrected in dot-correction E25. Thus, the deviation between image data by color is eliminated.
Inventors:
Kazushige Taguchi
Application Number:
JP27554897A
Publication Date:
July 16, 2008
Filing Date:
October 08, 1997
Export Citation:
Assignee:
株式会社リコー
International Classes:
H04N1/028; G06T1/00; G06T3/00; H04N1/19; H04N1/48
Domestic Patent References:
| JP888778A | ||||
| JP5227370A | ||||
| JP622159A | ||||
| JP851527A | ||||
| JP9163081A | ||||
| JP5281624A | ||||
| JP8163316A |
Attorney, Agent or Firm:
Nobuoki Sugi