Canon CanoScan N1240U User Manual page 36

chapter 3
What is on the
Screen?
Contents
Troubleshooting
Glossary
Index
Remove Dust and Scratches
This function automatically produces a scanned photo image with the areas
under small bits of dirt or scratches removed. The available settings are
[None], [Soft], [Normal] and [Hard].
•Soft Compensates for high-contrast dirt and scratches. At this
setting, it may not be possible to restore areas under large
flecks of dirt or scratches.
•Normal This setting is recommended for most purposes.
•Hard Compensates for low-contrast dirt and scratches. Although
its may restore areas under large flecks of dirt or scratches,
it may leave artifacts after processing.
•
•
Note
•
•
•
•
•
This function is particularly effective at removing dirt or scratches from
images with large areas of relatively consistent coloring, such as sky shots,
etc.
You can perform this function only when the
previewed image appears.
With large dust and scratches, the traces may remain
after this function.
Areas under dirt and scratches may not be removed if
the selected scan area is too small.
There are occasions when areas under dirt or
scratches on the top or bottom edges cannot be
removed.
With this function On, it will take longer to scan.
When you set both [Descreen] and [Remove Dust and
Scratches] to On, only [Descreen] will take effect.
With books and magazines, this function may not
perform well.
36