December 12, 2016

Dark Spot 

An undesirable concentration of an ink pigment in one particular spot, commonly caused by a pit or depression in the surface of the substrate.
December 12, 2016

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
December 12, 2016

Data File 

Alternate term for a computer file. See File.
December 12, 2016


In papermaking, the removal—either by mechanical or chemical means—of removing ink from wastepapers during recycling.
December 12, 2016


In image manipulation, an adjustment made to an image to compensate for physical or dimensional distortions caused by errors in scanning.
March 29, 2021


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*
December 12, 2016

Dead White

Any white ink pigment exhibiting no trace of a tint.
December 12, 2016


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,
December 12, 2016

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
December 12, 2016


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.

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