An undesirable concentration of an ink pigment in one particular spot, commonly caused by a pit or depression in the surface of the substrate.
Data Compression
The process of removing redundant bits of information from a digital file (especially a graphics, audio, or video file) as a means of reducing file size and/or expediting processing and …
Data File
Alternate term for a computer file. See File.
De-Inking
In papermaking, the removal—either by mechanical or chemical means—of removing ink from wastepapers during recycling.
De-Skewing
In image manipulation, an adjustment made to an image to compensate for physical or dimensional distortions caused by errors in scanning.
dE2000
Delta-E 2000 is the first major revision of the dE94 equation. Unlike dE94, which assumes that L* correctly reflects the perceived differences in lightness, dE2000 varies the weighting of L* …
Dead White
Any white ink pigment exhibiting no trace of a tint.
Deckle
A type of paper with an irregular, untrimmed edge which decreases in thickness towards the edge of the paper. Deckle edge paper is commonly used for high-quality books, booklets, announcements, …
Delta E
The term Delta E or ∆E is used to describe color differences in the CIELAB color space. The term stems from the greek letter delta which is used in science to denote …
Densitometer
A densitometer is an instrument having a light-sensitive photoelectric eye for measuring the density of colored ink to measure and control the optical density of color inks on the substrate. …