User manual

3 • Basic scanning procedures
ColorQuartet 5.0 Pro
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Special Functions
For a Line Art scan, set the Threshold, which determines the breaking point between black and
white.
If CCITT Group 3 compression is desired, activate the Line Art Compression check box.
For scanning printed matter, use the Descr
een function to remove the existing screen dots.
Otherwise, you may get an undesired pattern known as Moiré.
Auto Functions in Magic Touch
If you want ColorQuartet to intelligently set the highlight and shadow points (i.e., the lightest
and darkest parts of each image) to appropriate values, activate Highlight/Shadow. This func-
tion also corrects color cast
in the lightest and darkest areas.
If you want ColorQuartet to intelligently adjust the gr
adation (overall lightness or darkness) of
the image, activate Gradation.
If you want ColorQuartet to increase the color intensity
of the image, activate Saturation.
If you want ColorQuartet to intelligently sharpen
each image, activate Sharpening.
If you want ColorQuartet to go ahead with the final scans as soon as you click on the Scan but-
ton in the Magic Touch window, activate Do Jobs.
The default setting is 50%.
If the image is lighter than normal, you may want to set the threshold lower
to reproduce more of the image as black.
If the image is darker than normal, you may want to set the threshold
higher.
CCITT Group 3-compressed TIFF files can be viewed in Photoshop if you
have Photoshop 5.0 or higher.
CCITT-compressed EFS files cannot be opened by Photoshop.
Depending on the type of original, choose between Newspaper (coarse),
Newspaper (fine), Magazine, and Art Magazine. The Screen Ruling box will
display the screen ruling that is typically used for the chosen type of printed
matter.
You can type in any other desired screen ruling. If you do, the menu will
automatically switch to Custom.
If the output shows Moiré patterning, try again with a slightly lower screen
ruling.
If the output is not sharp enough, try a slightly higher screen ruling.