A-63054 February 2004
9A-3
7. Select one of the auto-crop and deskew options.
NOTES: Deskewing
color images
is reliable up to a skew angle of 10 degrees.
Documents with skew angles greater than 10 degrees may still be
deskewed, but the likelihood of deskew not being performed
increases as the skew angle increases past 10 degrees.
You may have difficulties with color deskew and auto-crop processing
on darker color documents (e.g., nighttime photos or documents with
dark backgrounds). This is because there is not enough contrast
between the document and the image background in order for
Capture Software to distinguish the document edges.
When scanning with a scanner equipped with Document Image Manager (i.e.,
Scanner 3520, Scanner 7520, Scanner 9520), auto-crop and deskew are
performed by the scanner during scanning. For these scanners, the Deskew
options are different, as shown below.
Raw Image
—no auto-crop or deskew takes place.
Crop
—image is auto-cropped. Black borders around the
image are removed. No deskew takes place.
Deskew with White Corners
—image is auto-cropped and
deskewed on-the-fly immediately after scanning.
If image deskew is high and corners are lost during
scanning, Capture Software fills in the lost corners with a
white background.
Deskew with Black Corners
—image is auto-cropped and
deskewed on-the-fly immediately after scanning.
If image deskew is high and corners are lost during
scanning, Capture Software fills in the lost corners with a
black background.
Deskew without Borders
—image is auto-cropped and
deskewed by the scanner. An additional auto-crop is
performed by Capture Software to remove any remaining
black borders in the image.
Deskew with Borders
—image is auto-cropped and
deskewed by the scanner only. No additional auto-crop is
performed by Capture Software.