Canon CanoScan FB 1200S User Manual page 100

CONTENTS
INDEX
Color wheel
A representation of colors and their complements.
Complementary colors
Red, green, and blue can be thought of as complementary colors to cyan,
magenta, and yellow. These colors cancel each other out when combined in
equal amounts. Similarly, adding a small amount of one color reduces its
complement by that amount.
Contrast
Contrast refers to the difference between the lightest light and the darkest
dark in the image. A low contrast value indicates that the difference between
dark shades and light shades is not very great. A high value indicates a great
difference between dark and light shades. While brightness refers to the
intensity of tones in an image, contrast refers to the range and number of
tones in an image.
Crop
The action of selecting part of an image. The Crop tool on the main ScanGear
CS-S window lets you select part of a preview image and re-preview or scan
only that selected part.
Curve chart
The graph displayed in the Tone tab settings for the Auto Tone, Contrast/
Brightness, Gamma, Histogram, and Special Tone Curves features. This graph
describes the relationship between the color characteristics of the previewed
image and the available feature settings.
Curve file
A file containing Special Tone Curve settings. (Tone tab - Special Tone Curves)
Custom curves
A user-defined Special Tone Curve that may be saved in a file. (Tone tab -
Special Tone Curves)
Custom Resolutions
The Custom Resolutions dialog box lets you create a scan resolution not
found in the preset list, but supported by the input device.
Default
The preset factory settings on hardware or software.
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