Epson 600 User Manual page 132

Glossary
Saturation The strength or intensity of a color based on the degree to
which it lacks its complementary color. For example, a
strongly saturated blue would have little or no yellow (its
complementary color) in it. A red with little saturation
would have a lot of cyan (its complementary color) mixed
in, and as a result, would look muddy or dark.
Sharpening To take out the blurred edges on images by increasing
the contrast (distinction between dark and light tones)
between adjacent pixels.
TWAIN An industry standard for transferring information from an
image capturing device (such as a scanner) to your
computer.
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