Introduction to computer graphics Definition

Definition of Computer Graphics involves Display, manipulation and storage of pictures and experimental data for proper visualization using a computer.
Typical graphics system buffer comprises of a host computer with support of fast
Display devices(color monitors)
- Input Devices (Mouse, keyboard, joystick, touch screen, trackball )
- Output Devices (LCD panels, Laser printer, Color printer, plotter)
Typical applications areas are :-
1- GUI (Graphical user Interface) Typical Components used :-
? Menus
? Icons
? Cursers
? Dialog Boxes
? Scroll Bars
2- Plotting in business
3- Office Automation
4- Disk top publishing
5- Plotting in science and technology
6- Web /business /commercial and advertisements
7- CAD/CAM design
8- Scientific Visualization
9- Entertainment (TV, Movie, Games)
10- Simulation studies
11- Simulators
12- Cartography
2
13- Multimedia
14- Virtual reality: overlaying artificial information on real -world scene
15- Process monitoring
16- Digital Image Processing
17- Education and training
18- Computer vision : inverse of computer graphics, and decipher scene information from images.
19- Geographic Information Systems (GIS)
20- animation, games
Components of Computer Graphics
1- Modeling: Defining objects in terms of primitives, coordinates and characteristics
2- Storing: storing scenes and images in memory and on disk
3- Manipulating: changing the shape, position and characteristics of objects
4- Rendering: applying physically based procedures to generate (photorealistic)
images from scenes (using lighting and shading).
5-Viewing: displaying images from various viewpoints on various device