See Alkaline Paper.
Acidity
The extent to which a solution is an acid. See Acid and pH.
ACR
Abbreviation of achromatic color removal, an obsolete term for gray component replacement. See Gray Component Replacement.
Actual Basis Weight
The basis weight of a quantity of paper as measured under prevailing environmental conditions. Actual basis weight can differ from the specified basis weight due to variations in the papermaking process and …
Acutance
A measure of the sharpness of the edge of a printed image against a background or the substrate on which it is printed.
Add-Noise Filter
In graphics and digital image manipulation, a function of many image-editing programs that allows the user to distort an image so as to make it look like a coarse grained photograph.
Additive Color Primaries
In color, wavelengths of light corresponding to the colors red, green, and blue, which can be combined to produce other colors, such as yellow, orange, violet, etc. Colors produced using these primaries …
Additive Color Theory
In color, intermediate colors created by mixing the additive color primaries, or light having wavelengths that correspond to red, green, and blue. Each of these colors occupies about one-third of the visible spectrum …
Addressability
A term referring to the smallest discrete unit (such as a pixel) that a computer display can address.
Addressable Print
On a computer display, the smallest point (such as the pixel) that can be described in terms of device coordinate”]s.