Canon CanoScan N670U CanoScan N670U/N676U/N1240U ScanGear CS-U 6.2 for Win/Mac - Page 93

Color Channels, Color Matching, Color Mode, ColorSync Color Matching Macintosh, Contrast - for mac

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Glossary Contents Troubleshooting Glossary Index 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. The Master channel is a combination of the three. Color Matching The range of colors your scanner can see may not match the range of colors your video monitor can produce. Color matching lets your system display colors so that the color on your monitor and printer matches the colors scanned. See also Canon ColorGear Color Matching and ColorSync Color Matching. 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 (Photos),Color (Documents), Grayscale, Text Enhanced (only for Windows), and Black and White. ColorSync Color Matching (Macintosh) The Color managements System developed by Apple Computer as an extension function of Mac OS. 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. 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. 93

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93
Glossary
Troubleshooting
Glossary
Contents
Index
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. The Master channel is a combination of the three.
Color Matching
The range of colors your scanner can see may not match the range of
colors your video monitor can produce. Color matching lets your system
display colors so that the color on your monitor and printer matches the
colors scanned. See also Canon ColorGear Color Matching and ColorSync
Color Matching.
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
(Photos),Color (Documents), Grayscale, Text Enhanced (only for Windows),
and Black and White.
ColorSync Color Matching (Macintosh)
The Color managements System developed by Apple Computer as an
extension function of Mac OS. 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.
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.