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Raster-scan display sample; visible gaps between the horizontal scan lines divide each character. A raster scan, or raster scanning, is the rectangular pattern of image capture and reconstruction in television. By analogy, the term is used for raster graphics, the pattern of image storage and transmission used in most computer bitmap image systems.
In computer graphics and digital photography, a raster graphic represents a two-dimensional picture as a rectangular matrix or grid of pixels, viewable via a computer display, paper, or other display medium. A raster image is technically characterized by the width and height of the image in pixels and by the number of bits per pixel. [1]
Raster graphic image. In computer graphics, rasterisation (British English) or rasterization (American English) is the task of taking an image described in a vector graphics format (shapes) and converting it into a raster image (a series of pixels, dots or lines, which, when displayed together, create the image which was represented via shapes).
This is sometimes used today as a visual effect in computer graphics. [3] The term is used, by analogy, for a single row of pixels in a raster graphics image. [4] Scan lines are important in representations of image data, because many image file formats have special rules for data at the end of a scan
Despite these differences, 3D computer graphics rely on similar algorithms as 2D computer graphics do in the frame and raster graphics (like in 2D) in the final rendered display. In computer graphics software, the distinction between 2D and 3D is occasionally blurred; 2D applications may use 3D techniques to achieve effects such as lighting ...
In computer graphics, image tracing, raster-to-vector conversion or raster vectorization is the conversion of raster graphics into ... format by scanning and ...
Raster graphics editor, a computer program; Raster scan, the pattern of image readout, transmission, storage, and reconstruction in television and computer images; Rasterisation, or rasterization, conversion of a vector image to a raster image; Raster image processor, or RIP, a component of a printing system that performs rasterisation
The term bitmap comes from the computer programming terminology, meaning just a map of bits, a spatially mapped array of bits. Now, along with pixmap, it commonly refers to the similar concept of a spatially mapped array of pixels. Raster images in general may be referred to as bitmaps or pixmaps, whether synthetic or photographic, in files or ...