Unit four Image processing multimedia System.ppt

After the end of this chapter you will be able to:-
Recognize components of multimedia and work with these
components effectively
Understand the meaning and use of multimedia production
Create interactive applications using multimedia applications
Competencies
Define multimedia
Explain the importance of multimedia
Identify HW & SW necessary to run a multimedia package
Differentiate multimedia from hypermedia
List and explain the stages of multimedia authoring
Identify sound, image, video file formats
Identify screen elements and each icons with their properties of
multimedia applications

Content
1. Basics of Multimedia
Definition
Importance
Components
SW & HW requirements
Multimedia and Hypermedia
2. Multimedia Authoring
Stages of Multimedia authoring
Authoring tools
File Formats

Definition:
Derived from the word “Multi” and “Media”
Multi
Many, Multiple,
Media
 Tools that is used to represent or do a certain things,
delivery medium, a form of mass communication –
newspaper, magazine / tv.
 Distribution tool & information presentation – text, graphic,
voice, images, music and etc
4.1 Basics of Multimedia

Multimedia is a combination of text, graphic, sound,
animation, and video that is delivered interactively to the
user by electronic or digitally manipulated means.
Is a technology that presents information in more than
one medium. Like text, picture, video, sound, and
animation.
Cont….
TEXT
AUDIO
GRAPHIC
VIDEO
ANIMATION

There are a number of fields where multimedia could be
of use. Examples are:-
Business
Education
Entertainment(recration)
Home
Public Places
Importance of Multimedia

Business
Use and Applications
Sales / Marketing Presentation
Trade show production
Staff Training Application
Company Kiosk
Cont….

Education
Courseware / Simulations
E-Learning / Distance Learning
Information Searching
Cont….

Entertainment
Games (Leisure / Educational)
Movies
Video on Demand
Online
Cont….

Home
Television
Satellite TV
SMS services (chats, voting, reality TV)
Cont….

• Public Places
– Use and Applications
• Information Kiosk
• Smart Cards, Security
Cont…

TEXT
 A broad term for something that contains words to express
something.
 Text is the most basic element of multimedia.
 A good choice of words could help convey the intended message
to the users (keywords).
 Used in contents, menus, navigational buttons
Elements of Multimedia
TEXT
AUDIO
GRAPHIC
VIDEO
ANIMATION

Graphics
 Two-dimensional figure or illustration
 Could be produced manually (by drawing, painting, carving, etc.)
or by computer graphics technology.
 Used in multimedia to show more clearly what a particular
information is all about (diagrams, picture, clipart, photograph).
Cont…
TEXT
AUDIO
GRAPHIC
VIDEO
ANIMATION

VIDEO
 Is the technology of capturing, recording, processing,
transmitting, and reconstructing moving pictures.
 Video is more towards photo realistic image sequence / live
recording as in comparison to animation.
 Video also takes a lot of storage space. So plan carefully before
you are going to use it.
Cont…
TEXT
AUDIO
GRAPHIC
VIDEO
ANIMATION

Audio
 Produced by vibration, as perceived by the sense of hearing.
 In multimedia, audio could come in the form of speech, sound
effects and also music score.
Cont…
TEXT
AUDIO
GRAPHIC
VIDEO
ANIMATION

ANIMATION
 The illusion of motion created by the consecutive display of
images of static elements.
 In multimedia, animation is used to further enhance / enriched the
experience of the user to further understand the information
conveyed to them.
Cont…
TEXT
AUDIO
GRAPHIC
VIDEO
ANIMATION

A multimedia computer system is a computer capable of
integrating two or more types of media (text, graphics,
animation, audio and video) for generation, storage, representation,
manipulation, and access of multimedia information.
For using multimedia on a computer system, it needs certain
hardware components and software resources to be present.
Hardware Requirements for Multimedia
The basic hardware requirement for multimedia are:
1. Central Processing Unit (CPU) — Pentium Processor
2. Random Access Memory (RAM) — 1 GB RAM
3. Monitor — Super Virtual Graphics Arrays (SVGA)
4. Video Card
5. Sound Card
6. CD-ROM Drive
HW & SW Requirements

Software Requirements for Multimedia
The basic software requirement for multimedia are:
1. Word Processor for entering text
2. Image Processing software such as Photoshop, CorelDraw, etc.
3. Animation creator like 3D Max, Flash, etc.
4. Sound can be created using Sound forge, etc.
5. Video can be used by using software like Video for Windows,
Author Ware, etc.
Cont…

Multimedia
It is the integration of sound, animation, and digitized video with
more traditional types of data such as text. It is an application-
oriented technology that is used in a number of ways, for example, to
enhance presentations, and is based on the increasing capability
of computers to store, transmit, and present many types of
information.
Some examples of multimedia applications are: business
presentations, online newspapers, distance education, and interactive
gaming.
Multimedia and Hypermedia

Hypermedia
It is an enhancement of hypertext, the non-sequential access of
text documents, using a multimedia environment.
A combination of hypertext, graphics, audio, video, (linked elements)
and interactivity culminating in a complete, non-linear computer-
based experience.
The major difference between multimedia and hypermedia is that the
user is more actively involved in the hypermedia experience, whereas
the multimedia experience is more passive.
Cont…

Cont.…
Main Page
1. Video link
2. Image link
3. Audio Link

Multimedia authoring involves collating, structuring and presenting
information in the form of a digital multimedia, which can
incorporate text, audio and still and moving images.
Stages of Multimedia Authoring
The five stages of multimedia authoring are:
1. Analysis: What do you need to do and what do you use to do it.
2. Design: Create storyboards to tell the story of the project.
3. Development: Incorporate data and set it up as a prototype or
model.
4. Evaluation: When the prototype application works the way you
want it to, test it again, fine-tune it, make it attractive, and then
review your work.
5. Distribution: When it is ready to go (after the evaluation phase),
make it real. Package and distribute it.
4.2. Multimedia Authoring

Authoring tools Example
Authoring can be described as creating highly interactive applications
in which the information can flow in both the directions i.e., from
application to user and from user to application.
Multimedia packages and authoring tools help us in creating higher
quality audio and video applications with little expertise.
Some multimedia authoring packages are:
Cont…
(i) Macromedia Authorware
(iii) Macromedia Flash
(v) Icon Author
Some multimedia authoring tools are:
(i) Computer
(iii) Digital camera
(ii) Adobe Premier
(iv) Everest Authoring System
(vi) ImageQ
(ii) Scanner
(iv) Sound recorder

File formats of sound, image and video
There are dozens of different file formats for images, video and
sound. The most common ones are given below:
 File Format for Sound
(i) WAV (Windows Wave Format)
(ii) MIDI (Musical Instrument Digital Interface)
(iii) WMA (Windows Media Audio)
 File Format for Image
(i) TIFF (Tagged Interchange File Format)
(ii) JPEG (Joint Photographic Experts Group)
(iii) GIF (Graphics Interchange Format)
(iv) PNG (Portable Network Graphics)
(v) BMP (Windows Bitmap Format)
 File Format for Video
(i) AVI (Audio Video Interleave)
(ii) MPEG (Moving Picture Experts Group)
Cont…

4.3. Introduction to Multimedia
Authoring Tools

Unit four Image processing multimedia System.ppt

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