1.A raster scan, or raster scanning, is the rectangular pattern of image capture and reconstruction in television.
2.Each scan line can be transmitted in the form of an analog signal as it is read from the video source, as in television systems, or can be further divided into discrete pixels for processing in a computer system.
3.In a raster scan, an image is subdivided into a sequence of (usually horizontal) strips known as "scan lines".
4.Each scan line can be transmitted in the form of an analog signal as it is read from the video source, as in television systems, or can be further divided into discrete pixels for processing in a computer system.
5.This ordering of pixels by rows is known as raster order, or raster scan order.
6.In raster scanning, the beam sweeps horizontally left-to-right at a steady rate, then blanks and rapidly moves back to the left, where it turns back on and sweeps out the next line.
7.During this time, the vertical position is also steadily increasing (downward), but much more slowly, there is one vertical sweep per image frame, but one horizontal sweep per line of resolution.
2.Each scan line can be transmitted in the form of an analog signal as it is read from the video source, as in television systems, or can be further divided into discrete pixels for processing in a computer system.
3.In a raster scan, an image is subdivided into a sequence of (usually horizontal) strips known as "scan lines".
4.Each scan line can be transmitted in the form of an analog signal as it is read from the video source, as in television systems, or can be further divided into discrete pixels for processing in a computer system.
5.This ordering of pixels by rows is known as raster order, or raster scan order.
6.In raster scanning, the beam sweeps horizontally left-to-right at a steady rate, then blanks and rapidly moves back to the left, where it turns back on and sweeps out the next line.
7.During this time, the vertical position is also steadily increasing (downward), but much more slowly, there is one vertical sweep per image frame, but one horizontal sweep per line of resolution.
very helpfull thank you...
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