Canon CanoScan D1250U2F User Manual page 60

Glossary
Contents
Glossary
Index
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
Canon's process for matching the color profile of the input device (scanner)
to the color profile of the output device (monitor) to yield the most
accurate color image.
Color Channels
The red, green, or blue components of a color image. Color images contain
8 bits per pixel each for red, green, and blue channels, therefore each pixel
has 24 bits. If you are scanning a color image, you can change the
brightness and contrast of the individual red, green, and blue tones in your
image.
Color Mode
The type of scan used to scan an image, differentiated by the number of
bits per pixel. ScanGear CS-U has the following Color Modes: Color,
Grayscale, Text Enhanced, and Black and White.
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.
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