Definitions for "Undercolor Removal"
Keywords:  ucr, magenta, cyan, midtone, shadow
Involves the reduction of dot percentages of cyan, magenta, and yellow inks in dark neutral areas and replacing the lost density by means of a heavier black plate.
In CMYK color calculation, the removal of some or all of the cyan, magenta, and yellow inks where black ink is to be substituted See also: black generation
Reducing the amount of cyan, magenta and yellow ink in the midtones and shadow areas of an image, whilst the amount of black ink is increased. Commonly referred to as UCR.