Faded Slide Restoration Examples, Page 3
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The CMYK system. The Subtractive
Color Method.
"CMYK" is the acronym for "Cyan," "Magenta," "Yellow," and "Black."
Cyan, magenta and yellow are the three primary colors in the
subtractive method. All colors in CMYK start with these primary
colors and then black is added to deepen or intensify the color.
When the three primaries are mixed together you will get a "near"
black. More like a muddy brown. That is why printers also use black
ink. Just about any color can be achieved by mixing these four
colors together. There are exceptions, though. Subtractive colors
get darker when mixed. Each of the mixed inks or paints absorbs
different components of light. If the right combination of paint or
ink is mixed together, all of the components of light are absorbed
and the result is a near black.
CMYK is a term mainly used in printing inks and also in paints.
Printing presses use four different sets of rollers and plates to
print a four color finished product whether it is a magazine, a post
card or just about any printed product. Some presses will use less
colors but not achieve a true four color print; some will use more
than four colors. Spot colors of unusual colors will be used because
they are difficult to create using the CMYK model.
Many computer printers use the CMYK model. They will have four
separate ink tanks and print heads.