Basic Computer Notions Graphics

Next Pixels Pixels (cont'd) 2-D graphics resolution 2-D graphics resolution (cont'd) Cathode-ray tube LCD Plasma E-paper 9 of 74 Generation of raster-scan images (cont'd) Refresh rate Generation of straight lines Generation of straight lines (cont'd) Generation of straight lines (cont'd) Generation of straight lines (cont'd) Generation of straight lines (cont'd) Generation of straight lines (cont'd) Generation of straight lines (cont'd) Generation of straight lines (cont'd) Generation of straight lines (cont'd) Generation of straight lines (cont'd) Generation of straight lines (cont'd) Generation of straight lines (cont'd) Generation of straight lines (cont'd) Generation of straight lines (cont'd) Generation of straight lines (cont'd) Generation of straight lines (cont'd) Generation of straight lines (cont'd) Generation of straight lines (cont'd) Generation of straight lines (cont'd) Graphics primitives Graphics processing units Subtractive Additive Colour display Colour display (cont'd) Colour display (cont'd) Colour palettes Colour palettes (cont'd) Colour palettes (cont'd) Colour palettes (cont'd) Colour palettes (cont'd) Colour palettes (cont'd) Colour palettes (cont'd) Colour palettes (cont'd) Colour gamut Colour gamut (cont'd) Colour gamut (cont'd) Colour gamut (cont'd) Colour gamut (cont'd) Character codes Graphics formats TIFF format DICOM format Common Web formats Lossless compression Lossy compression Lossy compression (cont'd) Lossy compression (cont'd) Lossy compression (cont'd) Graphics software Graphics software (cont'd) Graphics software (cont'd) Graphics software (cont'd) Graphics software (cont'd) Video Principle of tomography Principle of tomography (cont'd) Levels of detail Levels of detail (cont'd) Levels of detail (cont'd) Image segmentation Image analysis Image analysis (cont'd)

Generation of raster-scan images

An image is created on a cathode-ray tube (CRT) by firing electrons at a chemical (the phosphor) on a glass screen. The electron beam is swept back and forth, and top to bottom, in a zigzag pattern.

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