SIMRAN SINGH PPT multimedia tools & application.pptx

SIMRAN SINGH PPT multimedia tools & application.pptx

1. Submitted by Submitted to SIMRAN SINGH MR J. P. CHAUDHARY IInd sem, IT DEPT. LECT. IT DEPARTMENT Govt. Poly. Lucknow Govt. Poly. Lucknow Introduction to Multimedia & Animation

2. What is multimedia? Multi : more than one Medium (singular): middle, intermediary, mean Media (plural): means for conveying information Media in the press, newspaper, radio and TV context - mass media Media in communications: cables, satellite, network – transmission media Media in computer storage: floppy, CD, DVD, HD, USB – storage media Media in HCI context: text, image, audio, video, CG – interaction media Multimedia is a presentation of a computer application incorporating media elements such as text, graphics, animations , audio, and video.

3. What is Multimedia in terms of Computing Computing : Computer-based technologies and applications  What computers?  Various forms of computers/devices! In terms of computing, four fundamental multimedia attributes: Digitized : All media including audio/video are represented in digital format Distributed : The information conveyed is remote, either pre-produced and stored or produced in real-time, distributed over networks Interactive : When the user is given the option of controlling the elements of the multimedia project . Integrated: The media are treated in a uniform way, presented in an orchestrated way, but are possible to manipulate independently Definition of Multimedia: Computer-based techniques of text, images, audio, video, graphics, animation, and any other medium where every type of information can be represented, processed, stored, transmitted, produced and presented digitally .

4. Multimedia can be classified A Multimedia Project is identified as Linear when: It is not interactive User have no control over the content that is being showed to them. Example: A movie A non-interactive lecture / demo show LINEAR NON-LINEAR A Multimedia Project is identified as Non-Linear when: It is interactive , users have control over the content that is being showed to them. Users are given navigational control Example: Games Courseware Interactive CD

5. 10% of what they read 20% of what they hear 30% of what they see 50% of what they hear and see 80% of what they hear, see and say 90% of what they hear , see , say and touch Benefits of Multimedia

6. What are the media components? Text - ASCII/Unicode, HTML, Postscript, PDF Audio – Sound, music, speech, structured audio (e.g. MIDI) Still Image - Facsimile, photo, scanned image Video (Moving Images) – Movie, a sequence of pictures Graphics – Computer produced image Animation – A sequence of graphics images

7. Architecture & Issues for distributed multimedia system A multimedia designer is responsible for creating engaging ad interactive visual content across various platforms. They use a combination of graphics , animation , audio ,and video to produce captivating multimedia experiences Types of layers Architecture of multimedia system is consist of FOUR layer 1 layer : Network subsystem. 2 layer : End to end QOS control 3 layer : Media management. 4 layer : Application layer

8. DISTRIBUTED MULTIMEDIA Distributed multimedia system is an integral communication , computing and information system with the help of which remotely located multimedia content is integral. Communication subsystem Interactive TV Computing system Telecorporation Hypermedia application Hypermedia application DMS

9. General Overview of a Multimedia System

10. Compression/Decompression & file format 1. Data compression is a process by which we can reduce the size of the original data by doing it . 2. It helps us to save storage device and time . 3. Data compression is also called compaction . 4. The process of reducing the size of the data is called data compression . 5. Any original data is reduced in size by using compression algorithms.

11. Necessity of Data Compression After compressing the data, it take less storage space. Compressing the data saves storage space. You can easily send compressed data through the internet at any time, this saves only time. Compress data becomes easy to send to send and receive because after the data is compressed, its size decreases.

12. LOSSY COMPRESSION LOSSLESS COMPRESSION Lossy Compression : Lossy compression also called irreversible compression. It is an encoding method which reduces the size of the data . Reduced size data can be easily stored, handled and transmitted. Lossy compression does not produce exact original data after decompression. There is some data loss during the duration compression . In this transform coding , DCT, DWT, fractal compression algorithm is used . It is mostly used to compress image ,audio, and video data for example , lossy compression is used in JPEG, GUI, MP3, MP4, H.264 etc. TYPES OF DATA COMPRESSION

13. (b) Lossless Compression : The data compressed by the lossless compression technique produced the original data after decompression . This is a reversible process. RLW, LZW, arithmetic encoding , Shannon fano coding, lossless compression algorithm. It is mostly used to compress text program image or sound lossless compression technique is used in RAW , BMP , PNG, WAV, FLAC, ALAC etc.

14. THANK YOU