Canon FS 2710 - Manual (Page 73)

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Glossary
A P P E N D I C E S
12-bit grayscale image
An image which can display 4,096 gradations over the range of white, gray, and
black. However, there is no difference in appearance between a 12-bit grayscale
image and an 8-bit grayscale image on the screen.
24-bit color image
An image which can display 256 gradations (8 bits x 3) for each RGB color for a
total of 16.7 million colors (256 x 256 x 256).
36-bit color image
An image which can display 4,096 gradations (12 bits x 3) for each RGB color for a
total of 67.8 billion colors (4096 x 4096 x 4096).
8-bit color image
An image which can display 256 gradations over the range of white, gray, and
black.
Dot
The fundamental element of a letter, object or image. The number of dots per inch
(dpi) determines the resolution (or density) of a letter, object or image.
Gamma Correction
The process whereby variations in color tones from the output of monitors, printers
and other output devices are made consistent with the source (input) document.
With Plug-in module FS, gamma correction for a monitor can be conducted with
the Gamma Value Settings function. Gamma values are expressed as numbers: 1 is
the standard value, numbers lower than 1 brighten the output and numbers higher
than one darken the output. A graph function, the Tone Curve (gamma curve), is
also available in Plug-in module FS to make adjustments to gamma values
(p. 56) .
Image File
A computer file generated by scanning an image or by creating an image with an
image editing software program, such as Photoshop. An image file is generally
comprised of bitmap data, a collection of color information corresponding to each
dot of an image. There are many formats for image files, including the TIFF, PICT
and BMP formats.