Graphics

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Pixels

Pixels (cont'd)

2-D graphics resolution

2-D graphics resolution (cont'd)

Cathode-ray tube

LCD

Plasma

E-paper

Generation of raster-scan images

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

56 of 74

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)

Compression

Lossless compression

pink, pink, pink, pink, pink,
pink, pink, pink, pink, pink,
pink, blue, blue, green, green,
green, green, dark green, dark green,
dark green, green, green, green, green,
green, green, green, green, green,
green, green, green, green, green,
green, green, green, green, green,
green, green, green, blue, blue

11
pink
2
blue
4
green
3
dark green
22
green
2
blue

Used for images (including faxes), text, executable files, word-processing files, and digital data in general. E.g.:

run-length encoding (RLE), including PackBits (Mac), Huffman, etc.
Lempel-Ziv & Welch (LZW), as in GIF files (algorithm is patented; patent expired 2003 Jun in the U.S.A. but is still in force elsewhere)
‘deflate’ compression, as in PNG files (patent-free)

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Last modified: Tue, 2007 Mar 20 17:33:24

Slide show generated from graph.html by Weasel 2007 Mar 21