| 释义 |
raster
ras·ter R0050150 (răs′tər)n. A scanning pattern of parallel lines that form the image projected on a cathode-ray tube of a television set or display screen.
[German, from Latin rāstrum, rake (from the resemblance of the parallel lines to a rake's path); see rēd- in Indo-European roots.]raster (ˈræstə) n1. (Electronics) a pattern of horizontal scanning lines traced by an electron beam, esp on a television screen2. (Broadcasting) a pattern of horizontal scanning lines traced by an electron beam, esp on a television screenvb (Computer Science) to use web-based technology to turn (a digital image) into a large picture composed of a grid of black and white dots[C20: via German from Latin: rake, from rādere to scrape]ras•ter (ˈræs tər)
n. 1. a pattern of scanning lines covering the area on which an image is projected on the cathode-ray tube of a TV set. 2. Computers. a set of horizontal lines composed of individual pixels, forming an image on a monitor. [1934; < German: screen, network < Latin rāstrum toothed hoe, rake] Thesaurus| Noun | 1. | raster - the rectangular formation of parallel scanning lines that guide the electron beam on a television screen or a computer monitorvideo display, display - an electronic device that represents information in visual formformation - a particular spatial arrangementpel, picture element, pixel - (computer science) the smallest discrete component of an image or picture on a CRT screen (usually a colored dot); "the greater the number of pixels per inch the greater the resolution" |
TranslationsRasterrettangolo [dello schermo]
raster
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 bysweeping the electron beam of the display in a series ofhorizontal lines from top to bottom. The beam then returns tothe top during the vertical flyback interval.
See also CRT, frame buffer.rasterThe 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
Related to raster: Raster scanWords related to rasternoun the rectangular formation of parallel scanning lines that guide the electron beam on a television screen or a computer monitorRelated Words- video display
- display
- formation
- pel
- picture element
- pixel
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