Grayscale
An image made up of shades of gray, like a black and white
photo. Generally, grayscale is either 4-bit, allowing 16
shades, or 8-bit, allowing 256 shades and providing a more
photo-realistic quality.
Halftone
Halftone images are composed of a pattern of black dots that
simulate grayscale, such as many newspaper photos.
Hue
Hue provides the contrast between colors, what distinguishes
one color from antother.
Interpolated Resolution
The resolution of an image is enhanced by the software of the
scanner driver.
Invert
Reversting the color values in an image. Inverting a color
image will yield something that has the appearance of a
negative. Inverting a black and white image will reverse the
black with the white.
Line Art
Images that are purely black and white, such as black type
writing on white paper or many line drawings.
Optical Resolution
The true resolution of the scanner determined by its hardware
optics. Optical resolution is often enhanced by the scanner
driver yielding an interpolated resolution.
Saturation
The amount of color or intensity in a single hue.
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