raster


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Related to raster: Raster scan

raster

a pattern of horizontal scanning lines traced by an electron beam, esp on a television screen

raster

[′ras·tər]
(electronics)
A predetermined pattern of scanning lines that provides substantially uniform coverage of an area; in television the raster is seen as closely spaced parallel lines, most evident when there is no picture.

raster

(hardware)
The area of a video display that is covered by sweeping the electron beam of the display in a series of horizontal lines from top to bottom. The beam then returns to the top during the vertical flyback interval.

See also CRT, frame buffer.

raster

The horizontal lines (scan lines) displayed on a TV or computer monitor. This is the origin of the term "raster graphics," which is the major category that all bitmapped images and video frames fall into (GIF, JPEG, MPEG, etc.). See raster scan, raster display, analog video and bitmapped graphics.
References in periodicals archive ?
However, they are incapable of exploring a continuous raster surface to locate a usable path (Goncalves 2010).
Raster Printers, founded in 2004, offers a line of environmentally-friendly UV wide format printers, currently marketed under the brand name Daytona, targeted to mid-range customers in the display graphics market.
National mapping program technical instructions, standards for digital raster graphics.
PageTech's PCL 2 PDF conversion with embedded JBIG2 raster data raises the bar for producers of print stream transformation tools.
Descartes has tools to warp, georeference, resample, mosaic, drape and enhance imagery, and is built upon the high performance Raster Manager imagery platform that is integral to MicroStation V8.
In the first painting of the "Birches" series and again in the last, the geometric raster dissolves, so that the dark color splotches float freely on a white background, held only to each other in an unstable constellation.
By investing in Raster Printers, EFI continues to demonstrate its dedication to bringing the broadest array of innovative products to the printing industry, especially in the growing display graphics market.
DRV Raster Print Drivers the only drivers that support both Windows and Windows Terminal products in a uniform fashion.
Spatial Express helps organizations maximize their investment in Oracle Spatial 10g by enabling dramatic reductions of up to 95 percent for raster image storage.
This new release increases the ease and speed with which users can edit, integrate, and convert scanned drawings and photographs, known as raster images, with CAD projects.
These enhancements further improve productivity and usability by supporting the very latest versions of CAD software, while extending raster support for additional formats, such as ECW, as well as providing utilities to create overviews for better performance with large volumes of raster imagery.
Powerful New Features Support the Raster Editing Needs of Users