G
LOSSARY
77
G
LOSSARY
This Glossary contains some terms that are industry concepts and may not be explicitly
referenced in the documentation set.
A
additive color model
A system in which colors are produced by combining red, green, and blue light (the additive
primaries). An RGB video monitor is based on an additive color model.
additive primaries
Red, green, and blue light used in additive color systems. When blended together in proper
amounts, these colors of light produce white.
artifact
A visible defect in an image, usually caused by limitations in the input or output process
(hardware or software); a blemish or error.
B
banding
Visible steps between shades in a color gradient.
bit depth
Amount of information used for each pixel in a raster image. Black-and-white images require
only one bit per pixel. Grayscale images with 256 shades of gray require 8 bits (or 1 byte) per
pixel. Photographic quality color images can require 24 bits per pixel (RGB images) or 32 bits
per pixel (CMYK images).
Bitmap (BMP)
A graphics file format established by Microsoft; native to the Windows operating system.
bitmap (or raster)
An image made up of small squares arranged in a grid. Each square in the grid is a pixel.
The number of pixels per inch defines the resolution of a bitmap.
