Canon 4204B019AA User Manual page 587

You can adjust the scan area within the Preview area.
If an area is not specified, the document will be scanned at the document size (Auto Crop). If an area
is specified, only the portion in the cropping frame will be scanned.
Adjusting Cropping Frames
Image corrections
Fading correction
Corrects and scans photos that have faded with time or have a colorcast.
Backlight correction
Corrects photos that have been shot against light.
Gutter shadow correction
Corrects shadows that appear between pages when scanning open booklets.
Important
For precautions on using this function, see "
Color Pattern...
Allows you to adjust the image's overall color. You can correct colors that have faded due to
colorcast, etc. and reproduce natural colors while previewing color changes.
Adjusting Colors Using a Color Pattern
Perform Scan
Scan
Scanning starts.
Note
When scanning starts, the progress will be displayed. Click Cancel to cancel the scan.
Preferences...
The Preferences dialog box opens and you can make scan/preview settings.
Preferences Dialog Box
Close
Closes ScanGear (scanner driver).
Toolbar
Toolbar
You can adjust or rotate preview images. The buttons displayed on the Toolbar vary by view.
In thumbnail view
In whole image view
(Thumbnail)/
Switches the view in the Preview area.
Preview Area
(Rotate Left)
Rotates the preview image 90 degrees counter-clockwise.
- The result will be reflected in the scanned image.
- The image returns to its original state when you preview again.
Gutter Shadow Correction
(Whole Image)
."