Data Compression

COMPRESSION TECHNIQUES
1. REDUCE THE FILE SIZE
2. MOSTLY USED WITH SOUND, IMAGE +VIDEO
3. LOSSY COMPRESSION
  1. JPG
  2. GIF
  3. MP3
  4. MP4
4. LOSSLESS COMPRESSION
  1. PNG
  2. TIF
  3. SVG
LOSSY COMPRESSION
1. PERMENATELY REMOVES DATA
2. RECREATES THE FILE USING THE REMAINDING DATA
3. NOT SAME AS THE ORIGINAL
4. USES ALGORITHIMS TO GUESS THE REMOVED CONTENT
LOSSLESS COMPRESSSION (IMAGE)
1. FINDS GROUPS OF REPLECATING DATA AND RECORDS
2. WHEN DATA IS UNCOMPRESSED IT GOES BACK EXACTLY TO HOW IT WAS BEFORE
LOSSLESS COMPRESSION (TEXT)
1. FINDS PATTERNS WITH THE ORIGINAL TEXT
2. ENCODES EACH PATTERN INTO A DICTIONARY
WHY USE COMPRESSION
1. DOWNLOAD SPEED INCREASES
2. EASIER TO STORE
3. REDUCES TRAFFIC OVER THE INTERNET
4. LESS CHANCE OF ERRORS

Zusammenfassung der Ressource

	Erstellt von Lissette Willliams-Fernandez vor mehr als 7 Jahre