Area image acquiring method for image reading apparatus
AssigneeAvision Inc.
InventorYen-Cheng Chen
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Abstract
An image acquiring method of a scanned image is applying to an image reading apparatus having an automatic sheet-feeding function. The method includes the steps of: acquiring a first image at a scan region of the image reading apparatus by performing a sheet-feeding operation and an image reading operation; analyzing the first image to recognize an effective area and an ineffective area outside the effective area; and adjusting a timing for starting acquiring a second image in relation to size of the ineffective area, so as to reduce the size of the ineffective area in the second image.
Claims18
An area image acquiring method for an image reading apparatus having an automatic sheet-feeding function, the method comprising the steps of:
- acquiring a first image at a scan region of the image reading apparatus by performing a sheet-feeding operation and an image reading operation;
- analyzing the first image to recognize an effective area and an ineffective area outside the effective area;
- and
- adjusting a timing for starting acquiring a second image in relation to size of the ineffective area, so as to reduce the size of the ineffective area in the second image.
An area image acquiring method for an image reading apparatus having a sheet-feeding mechanism for feeding a sheet to be scanned, and the image reading apparatus comprises a first scanning module, the method comprising the steps of:
- performing a sheet-feeding operation and an image reading operation to acquire a first image;
- performing a leading edge recognizing procedure to recognize a leading edge error of the first image corresponding to the sheet;
- and
- performing a leading edge error decreasing procedure according to the leading edge error in the first image to regulate a number of rotations the sheet-feeding mechanism executes for transporting another sheet to a position opposite the first scanning module, and thus to acquire a second image having a smaller leading edge error than the leading edge error in the first image.
Dependencies are inferred from the claim text.