This document provides an overview of computer graphics and its applications. It defines computer graphics as the creation and manipulation of geometric objects and images through computer programs. Some key applications discussed include: - Computer-aided design (CAD) for modeling objects like buildings, vehicles, and products. - Presentation graphics for illustrating data through charts, graphs, and diagrams. - Entertainment applications like movies, games, and animation through modeling and rendering techniques. - Education and training through interactive models of systems. - Visualization of scientific and business data. Additional applications covered are computer art, image processing, and graphical user interfaces.

1. TEXT BOOK :
 DONALD HEARN & M.PAULINE BAKER
By:Ankit Garg,Assistant Professor
A Survey of
COMPUTER GRAPHICS & Its
Applications

2. Contents
Definition of CG
Computer – Aided Design
Presentation Graphics
Computer Art
Entertainment
Education and Training
Visualization
Image Processing
Graphical User Interfaces

3. Introduction
• What is Computer Graphics ?
• Applications

4. What is Computer Graphics?
 Creation, Manipulation and Storage of geometric objects (modelling) & their images
(rendering).
 Rendering is the process of generating an image from a 2D or 3D model , by means
of computer programs.
or
In 3-D graphic design, rendering is the process of add shading, color and to a 2-D or 3-D models
in order to create life-like images
on a screen
Solid Modeling Surface modeling

5. Applications of Computer Graphics
Computer Aided Design (CAD)
Presentation Graphics
Computer Art
Entertainment (animation, games, …)
Education & Training
Visualization (scientific & business)
Image Processing
Graphical User Interfaces

6. 1.Computer Aided Design (CAD)
Used in design of buildings, automobiles, aircraft,
watercraft, spacecraft, computers, textiles & many other
products
Objects are displayed in wire frame outline form

7. Animations are also used in CAD applications
Virtual -reality systems.

8. 2.Presentation Graphics
Used to produce illustrations for reports or generate
slides for use with projectors
Commonly used to summarize financial, statistical,
mathematical, scientific, economic data for research
reports, managerial reports & customer information
bulletins
Examples : Bar charts, line graphs, pie charts, time chart

9. Examples of presentation graphics

10. 3.Computer Art
Used in fine art & commercial art
Includes artist’s paintbrush programs, paint packages, CAD
packages and animation packages
These packages provides facilities for designing object shapes &
specifying object motions.
Examples : Cartoon drawing, paintings, product advertisements,
logo design

11. Computer Art
Electronic painting
Picture painted electronically on a graphics tablet (digitizer) using a
stylus
Morphing
Morphing is a special effect in motion pictures and animations that
changes (or morphs) one image or shape into another through a
transition.

13. 4.Entertainment
 Movie Industry
Used in motion pictures, music videos, and television shows.
Used in making of cartoon animation films

14.  Game Industry
Focus on interactivity
2D and 3D gaming environment can be created
With the use of computer Graphics.
o High resolution game can be created with virtual
Reality.

15. 5.Education & Training
Computer generated models of physical, financial and
economic systems are used as educational aids.
Models of physical systems, population trends, or equipment
such as color-coded diagram help trainees understand the
operation of the system

16. 7. Image Processing
CG- Computer is used to create a picture
Image Processing – applies techniques to modify or
interpret existing pictures such as photographs and TV scans
Medical applications
Picture enhancements
Simulations of operations
2 applications of image processing
To Improve picture quality
Image Morphing
Image Compression
Pattern Recognition
Video Processing
Image resizing

18. 8.Graphical User Interfaces
Major component – Window manager (multiple-window areas)
To make a particular window active, click in that window (using
an interactive pointing device)
Interfaces display – menus & icons
Icons – graphical symbol designed to look like the processing
option it represents
Advantages of icons – less screen space, easily understood
Menus contain lists of textual descriptions & icons

20. Thank You!