Scanner device and control method thereof, and image input system
AssigneeCanon Kabushiki Kaisha
InventorsTakanori Kodaira, Yohei Izumi
Life of this patent
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Abstract
In order to accurately perform correction of focal distance and color of film before pre-scanning, the image at the generally center area of the first frame of film is read in a first pre-scan, auto-focusing and judgment between negative/positive is made, exposure parameters are set in a second pre-scanning, and the image is read in main scanning.
Claims10
A control method for a scanner device which has reading means for reading an original image while performing relative scanning of said original image, said control method comprising the following steps:
- a first scanning step for reading a portion of the original image in order to detect an attribution of said original image;
- a second scanning step for reading the original image under a condition corresponding to the detected attribution and setting an exposure adjusting condition for reading the original image;
- and
- a third scanning step for reading the original image under the exposure adjusting condition set in the second scanning step.
A scanner device which has reading means for reading an original image while performing relative scanning of said original image, said scanner device comprising:
- first scanning means for reading a portion of the original image in order to detect an attribution of said original image;
- second scanning means for reading the original image under a condition corresponding to the detected attribution and setting an exposure adjusting condition for reading the original image;
- third scanning means for reading the original image under the exposure adjusting condition set by the second scanning means;
- and
- control means for controlling said first, second and third feeding means to operate sequentially.
Computer-readable memory storing program code for controlling a scanner device which has reading means for reading an original image while performing relative scanning of said original image, said computer-readable memory comprising:
- code for a first scanning step for reading a portion of the original image in order to detect an attribution of said original image;
- code for a second scanning step for reading the original image under a condition corresponding to the detected attribution and setting an exposure adjusting condition for reading the original image;
- code for a third scanning step for reading the original image under the exposure adjusting condition set in the second scanning step;
- and
- code for a control step for controlling said first, second and third scanning steps to operate sequentially.
Dependencies are inferred from the claim text.