Canon CanoScan D1250U2F CanoScan D1250U2 ScanGear CS-U 6.3 for Win Guide - Page 28

Mode is Black and White or Text Enhanced., Film Type CanoScan D1250U2F only, Filter Processing

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chapter 3 What is on the screen? Contents Glossary Index • Changing the Paper Size clears the Preview area and clears all settings set with the Toolbar or the buttons on Note the Tone sheet. Film Type (CanoScan D1250U2F only) This item is displayed only when [Film] has been selected as the Image Source. Specifies the film type to be scanned. Color Negatives, Color Positives, B&W Negatives, B&W Positives Filter Processing •Descreen Click this check box if you want ScanGear CS-U to conduct moiré reduction to improve the overall image quality. Moiré are dot patterns that interfere with processing of images for professional use and are usually caused by poor dithering resulting from scanning images from newspapers, books and magazines. This item is grayed out when [Film] has been selected as the Image Source, when the resolution is more than 600 dpi, or when the Color Mode is Black and White or Text Enhanced. • If an image is not improved by the Descreen function, try switching the Unsharp Mask function to off. • Descreen effect do not show in the Preview area. Note •Unsharp Mask Click this check box to switch the Unsharp Mask feature on and off. This function sharpens an image, such as a photograph that is slightly out of focus, by emphasizing the contrast to make outlines clearer. 28

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28
chapter 3
What is on the
screen?
Glossary
Contents
Index
•
Changing the Paper Size clears the Preview area and
clears all settings set with the Toolbar or the buttons on
the Tone sheet.
Film Type (CanoScan D1250U2F only)
This item is displayed only when [Film] has been selected as the Image
Source. Specifies the film type to be scanned.
Color Negatives, Color Positives, B&W Negatives, B&W Positives
Filter Processing
•Descreen
Click this check box if you want ScanGear CS-U to conduct moiré
reduction to improve the overall image quality. Moiré are dot
patterns that interfere with processing of images for professional use
and are usually caused by poor dithering resulting from scanning
images from newspapers, books and magazines.
This item is grayed out when [Film] has been selected as the Image
Source, when the resolution is more than 600 dpi, or when the Color
Mode is Black and White or Text Enhanced.
•
If an image is not improved by the Descreen function,
try switching the Unsharp Mask function to off.
•
Descreen effect do not show in the Preview area.
•Unsharp Mask
Click this check box to switch the Unsharp Mask feature on and off.
This function sharpens an image, such as a photograph that is
slightly out of focus, by emphasizing the contrast to make outlines
clearer.
Note
Note