Week 7 - Run-length encoding Delta Encoding Huffman...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
Week 7 17:36 Representing Info Text Numbers Graphics o Digitizing (Real world   Digital media) Sampling : Resolution Quantization : Bit Depth o Synthesize (create) Photoshop Illustrator Bitmap Vector Graphics Data Compression o Eliminate Redundancy  Extra Unnecessary Information Increase Realiability Reduce
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
17:36 Redundancy Extra uncessary information (but enhances realiability) Compression Eliminate (some redundancy) Data Compression Lossless compression o Zip “Lossy” compression o JPEG o MP3 Much better compression (smaller compressed file) Lossless Compression
Background image of page 2
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 4
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Run-length encoding Delta Encoding Huffman coding/Morse code LZW (Lempel Ziv Welch) Semantic Compression (vs Syntatic) Better, know about data Worse, specific to that kind of data o 1-949-824-5072 = 14 bytes o 9498255072 (BCD) = 5 bytes 17:36 Storage Hierarchy Registers- dozen RAM GB Hard Drive Solid-state Drive Disk- Medium Drive-Machine Read/Write Head Head Crash Electronic (solid state) o Faster, cheaper, more reliable Mechanical o Slow, expensive, unreliable 17:36...
View Full Document

Page1 / 4

Week 7 - Run-length encoding Delta Encoding Huffman...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online