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The first scanner to store its images digitally onto a computer was a drum scanner built in 1957 at the National Bureau of Standards (NBS, later NIST) by a team led by Russell A. Kirsch. It used a photomultiplier tube to detect light at a given point and produced an amplified signal that a computer could read and store into memory.
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.
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
A Blender screenshot displaying the 3D test model Suzanne. Computer graphics deals with generating images and art with the aid of computers.Computer graphics is a core technology in digital photography, film, video games, digital art, cell phone and computer displays, and many specialized applications.
The peak of image hits on the internet was in 1995. [11] The scan became one of the most used images in computer history. [13] The use of the photo in electronic imaging has been described as "clearly one of the most important events in [its] history". [14] The image spread to over 100 different domains, particularly .com and .edu. [11]
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]
Alternatively, a digital image may be obtained from another image in an analog medium, such as photographs, photographic film, or printed paper, by an image scanner or similar device. Many technical images—such as those acquired with tomographic equipment , side-scan sonar , or radio telescopes —are actually obtained by complex processing ...
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).
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