Title:
【発明の名称】フィルム読取装置
Document Type and Number:
Japanese Patent JP2556486
Kind Code:
B2
Abstract:
A color film reading apparatus of this invention has holding means for holding a color negative film therein; illuminating means for projecting illumination light onto the color negative film; reading means for reading image data from the color negative film; shading correcting means for performing shading correction; and controlling means for controlling the reading means to cause the reading means to read data relative to an unexposed portion of the color negative film to thereby obtain shading correction data for the shading correcting means. The apparatus is capable of generating high-gradation color signals from either of color negative and positive films. This invention further provides an image forming apparatus capable of producing a high-gradation image from either of a film-type original document or a reflection-type original document.
Inventors:
OOTA KENICHI
SUZUKI YASUMICHI
IKEDA YOSHINORI
SUZUKI YASUMICHI
IKEDA YOSHINORI
Application Number:
JP27144986A
Publication Date:
November 20, 1996
Filing Date:
November 14, 1986
Export Citation:
Assignee:
CANON KK
International Classes:
G03G15/04; H04N1/04; H04N1/00; H04N1/40; H04N1/401; H04N1/405; H04N1/407; (IPC1-7): H04N1/401; H04N1/00
Domestic Patent References:
| JP61121665A |
Attorney, Agent or Firm:
Marushima Giichi