Canon CanoScan N1240U User Manual page 92

Glossary
Contents
Troubleshooting
Glossary
Index
Black-point
The darkest portion of an image scanned as Color or Grayscale. When you
click on the image with the Black-point eyedropper, all tones darker than
the selected sample tones are adjusted to black.
Brightness
The overall amount of lightness or darkness in an image. An image with
maximum brightness tends toward white; an image with minimum
brightness tends toward black. While contrast refers to the range and
number of tones in an image, brightness refers to the intensity of tones.
Calibration
Calibration refers to the adjustment of color processing for input and
output devices on a computer, so that the colors match throughout the
process. For example, calibration ensures that the color image scanned on a
scanner matches the original image when it is displayed on the computer
monitor, as well as printed on a color printer.
Canon ColorGear Color Matching (Windows)
Canon's process of matching the color profile of the input device (scanner)
with the color profile of the output device (monitor), to yield the most
accurate color image.
Canon ImageTrust (Windows)
Canon's process of converting grayscale image (8 bits per pixel) to a black
and white image (1 bit per pixel) to yield a more effective scan for optical
character recognition (OCR) applications.
Channel
See Color Channels.
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