Overview of Computer Graphics
1.1 Application of Computer Graphics
Computer-Aided Design for engineering and architectural systems etc.
Objects maybe displayed in a wireframe outline form. Multi-window environment is also
favored for producing various zooming scales and views.
Animations are useful for testing performance.
To produce illustrations which summarize various kinds of data. Except 2D, 3D graphics
are good tools for reporting more complex data.
Painting packages are available. With cordless, pressure-sensitive stylus, artists can
produce electronic paintings which simulate different brush strokes, brush widths, and
colors. Photorealistic techniques, morphing and animations are very useful in commercial
art. For films, 24 frames per second are required. For video monitor, 30 frames per second
Motion pictures, Music videos, and TV shows, Computer games
Education and Training
Training with computer-generated models of specialized systems such as the training of
ship captains and aircraft pilots.
For analyzing scientific, engineering, medical and business data or behavior. Converting
data to visual form can help to understand mass volume of data very efficiently.
Image processing is to apply techniques to modify or interpret existing pictures. It is
widely used in medical applications.
Graphical User Interface
Multiple window, icons, menus allow a computer setup to be utilized more efficiently.
1.2 Video Display devices
1.2.1Cathode-Ray Tubes (CRT) - still the most common video display device presently