Canon FS 3.6 User Manual page 127

Black and White
An image type utilizing only the highlight and shadow data from an
image, which is expressed in only two tones using the size of dot groupings
and density of either tone to express the image details. There are many
different standard patterns (dither patterns) that can be used to express an
image.
Brightness
The brightness of data scanned from a film. Raising the brightness value
makes an image brighter, lowering it makes it darker.
Color Balance
The balance of color tones in an image. The color balance of an image is
adjusted by changing the relative ratios of red, green and blue or cyan,
yellow, magenta and black.
Color Image
Images scanned as red, green and blue light and reproduced in gradients of
256 tones per color (8-bit). A color image can be expressed in up to 16.7
million color tones (256 x 256 x 256).
ColorGear
A proprietary Canon color management system that produces consistent
coloring between input and output devices, such as a scanner and
computer display.
Contrast
The difference in highlights and shadows when an image is scanned.
Raising the contrast produces a sharply defined image, lowering it
produces a softer, less focused image.
Dither Pattern
The arrangement of dots used to express data converted from the halftone
values of the original image into only two colors, black and white. Dither
patterns using groups of 8 x 8 dots (64) can be expressed as squares, circles,
triangles or other shapes, expressing the details if the image by varying the
size and density of groupings.
Dithering
One method of using only black and white to express halftones. After each
dot of the image has been converted to black or white using the halftone
threshold, the difference in brightness between the original and post-
conversion image is averaged and applied to the entire image, expressing it
in shadows and highlights.
Appendices
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