raster
gb/ɹˈæstɚ/ us/ɹˈæstɚ/
C1
Anh
raszterkép, raszter
DANH TỪ
C1
TECHNICAL
1
raszterkép
C1
Mẫu sử dụng:
a raster; [something] as a raster; often before another noun: raster image/graphics/file
The icon is stored as a raster, so enlarging it too much makes the edges look jagged.
Az ikon raszterképként van tárolva, ezért ha túlságosan felnagyítod, recésnek látszanak a szélei.
Most photographs on the web are rasters rather than vectors.
A weben található fényképek többsége raszterkép, nem pedig vektorgrafika.
The printer needs a high-resolution raster to produce sharp output.
Ví dụ cho người học
A raster is made of pixels.
A raszterkép pixelekből áll.
The small raster became blurry when I enlarged it.
A kis raszterkép elmosódott lett, amikor felnagyítottam.
Lỗi thường gặp:
Do not confuse raster with vector; raster images can lose sharpness when enlarged.
Nghĩa
pixel-based image grid
Cụm từ đi kèm
raster image
|raster graphics
|raster file
|raster format
|high-resolution raster
|raster artwork
|raster texture
|raster editor
|raster output
|raster map
Từ đồng nghĩa
bitmap (Very close in computing; sometimes used for particular pixel-based image files or formats.)
|
pixel image (More descriptive and less technical than raster.)
Từ trái nghĩa
vector graphic (Uses mathematical paths and shapes rather than fixed pixels.)
|
vector image (Can usually be scaled without pixelation, unlike a raster.)
Chủ đề
computing
|digital_media
|graphic_design
|photography
Định nghĩa
a digital image made from many tiny pixels in a grid
A rectangular grid of pixels or cells used to store or display a digital image, as opposed to a vector representation made from mathematical lines and shapes.
DANH TỪ
C2
TECHNICAL
2
raszter
C2
Mẫu sử dụng:
a raster; [type] raster; raster(s) of/for [area or measurement]
The elevation model is a raster with one height value for each cell.
A domborzatmodell egy olyan raszter, amelyben minden cellához egy magassági érték tartozik.
The analyst combined several rasters to compare rainfall, slope, and vegetation.
Az elemző több rasztert kombinált, hogy összehasonlítsa a csapadékot, a lejtést és a növényzetet.
In the map, darker raster cells show areas with higher surface temperature.
Ví dụ cho người học
The map uses a raster to show temperature.
A térkép rasztert használ a hőmérséklet megjelenítésére.
Each cell in the raster has a number.
A raszter minden cellájában egy szám van.
Lỗi thường gặp:
Do not confuse a GIS raster with vector data, which uses points, lines, and polygons.
Nghĩa
gridded geospatial data
Cụm từ đi kèm
elevation raster
|land-cover raster
|climate raster
|satellite raster
|raster dataset
|raster layer
|raster cell
|raster value
|raster resolution
|raster analysis
Từ đồng nghĩa
grid dataset (Descriptive term for the same kind of cell-based spatial data.)
|
gridded data (Broader term that may be used outside GIS as well.)
Từ trái nghĩa
vector data (Represents spatial features as points, lines, and polygons rather than grid cells.)
Chủ đề
gis
|mapping
|geography
|data_science
Định nghĩa
map data made from many small cells, with a value in each cell
In GIS and mapping, a dataset that represents an area as a regular grid of cells, each holding a value such as elevation, temperature, or land cover.
DANH TỪ
C2
TECHNICAL
3
raszter
C2
Mẫu sử dụng:
the raster; a [display/television/video] raster
On a CRT, the electron beam traces the raster from left to right and top to bottom.
A CRT-ben az elektronsugár balról jobbra és fentről lefelé rajzolja ki a rasztert.
A fault in the video signal distorted the raster and made the picture roll.
A videojel hibája eltorzította a rasztert, és a kép futni kezdett.
The emulator can display the faint raster lines of an old arcade monitor.
Ví dụ cho người học
The old screen drew the picture in a raster.
A régi képernyő raszterben rajzolta ki a képet.
Lỗi thường gặp:
Raster scan is the scanning method; raster can mean the pattern produced by that method.
Nghĩa
screen scan-line pattern
Cụm từ đi kèm
raster scan
|television raster
|video raster
|CRT raster
|display raster
|raster line
|raster pattern
|scan raster
Từ đồng nghĩa
scan pattern (More general and less specific than raster.)
|
scan-line pattern (Emphasizes the visible or technical lines in the display.)
Từ trái nghĩa
vector scan (Draws lines or shapes directly instead of scanning the whole image line by line.)
Chủ đề
electronics
|video
|television
|display_technology
Định nghĩa
the line-by-line pattern used to draw an image on some screens
The regular pattern of parallel scan lines used to form an image on a television, monitor, scanner, or similar display system.
Ngữ pháp
Dạng từ điển
raster
IPA
GB/ɹˈæstɚ/
US/ɹˈæstɚ/
Âm tiết và trọng âm
ras - ter (2 âm tiết)
Stress on 1st syllable (ras)
Các dạng từ
Noun
- Base: raster
- Plural: rasters
Cách diễn đạt
raster format
1/ɹˈæstɚ fˈɔɹmˌæt/
fixed phrase
technical
pixel-based image file type
a type of image file that stores pixels
Ví dụ
- PNG, JPEG, and TIFF are common raster formats.
- Save the scanned document in a raster format if you only need a picture.
- The designer chose a raster format because the image was a photograph.
Ví dụ cho người học
- JPEG is a raster format.
- I saved the photo in a raster format.
raster graphics
1/ɹˈæstɚ ɡɹˈæfɪks/
fixed phrase
technical
pixel-based computer graphics
digital graphics made from pixels
Ví dụ
- The app supports both raster graphics and vector graphics.
- Raster graphics are good for photographs but less convenient for editable logos.
- She learned raster graphics editing in Photoshop.
Ví dụ cho người học
- Raster graphics use pixels.
- The class compared raster graphics and vector graphics.
raster image
1/ɹˈæstɚ ˈɪmɪd͡ʒ/
fixed phrase
technical
pixel-based digital picture
a picture made of many tiny pixels
Ví dụ
- She exported the drawing as a raster image for the website.
- A raster image may look pixelated when it is enlarged.
- Use a vector logo for scaling, not a small raster image.
Ví dụ cho người học
- A photo is usually a raster image.
- The raster image became blurry.
raster scan
1/ɹˈæstɚ skˈæn/
fixed phrase
technical
line-by-line screen scanning
a way of drawing or reading an image one line at a time
Ví dụ
- The monitor refreshes the display with a raster scan.
- Early television cameras read the scene with a raster scan.
- In a raster scan, the system moves across each line before starting the next one.
Ví dụ cho người học
- The screen uses a raster scan.
- A raster scan goes line by line.
raster-to-vector conversion
1/ɹˈæstɚ tə vˈɛktɚ kənvˈɚʒən/
fixed phrase
technical
pixel-to-vector conversion process
changing a pixel image into editable vector shapes
Ví dụ
- Raster-to-vector conversion turned the scanned map into editable lines.
- Good raster-to-vector conversion depends on clean source images.
- The company used raster-to-vector conversion to rebuild old floor plans in CAD software.
Ví dụ cho người học
- Raster-to-vector conversion made the map editable.