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raster

   Also found in: Dictionary/thesaurus, Wikipedia 0.11 sec.

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.

raster
a pattern of horizontal scanning lines traced by an electron beam, esp on a television screen
(hardware)raster - 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.


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The complete catalog of more than 1,000 NOAA raster charts can now be viewed online using a standard Internet browser--no special software required.
NOAA unveils new online chart viewer by BOAT/U.S. Magazine
4, a version of the published, freely available PDF specification, and will be useful for formatting document files that contain multiple pages of text, raster images, or vector graphics.
Coming in 2005: international PDF-archive standard by Swartz, Nikki / Information Management Journal
With Spatial Express, organizations can now maximize investment in Oracle Spatial 10g by storing geospatial raster imagery natively in both JPEG 2000 and MrSID formats dramatically reducing the storage space used for their raster imagery by up to 95 percent while retaining visually lossless image quality.
LizardTech's Spatial Express Enables Storage of MrSID(R) and JPEG ... by Business Wire
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