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Understanding Lempel-Ziv-Welch Coding in 8-bit Language

Learn about LZW Coding, also known as Lempel-Ziv-Welch, in the context of 8-bit dictionaries. Explore the process of encoding sequences, recognizing patterns, and utilizing a dynamic dictionary for efficient data compression.

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Understanding Lempel-Ziv-Welch Coding in 8-bit Language

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  1. LZW Coding Lempel-Ziv-Welch

  2. 4 x 4 x 8bit Dictionary 39 39 126 126 0 : 0 1 : 1 39 39 126 126 … : … 39 39 126 126 255 : 255 39 39 126 126 Currently Recognized Sequence 39 Encoded Output 39 Found in Dictionary!

  3. 4 x 4 x 8bit Dictionary 39 39 126 126 0 : 0 1 : 1 39 39 126 126 … : … 39 39 126 126 255 : 255 39 39 126 126 256 : 39 39 Currently Recognized Sequence 39 39 Encoded Output 39 Found in Dictionary!

  4. 4 x 4 x 8bit Dictionary 39 39 126 126 0 : 0 1 : 1 39 39 126 126 … : … 39 39 126 126 255 : 255 39 39 126 126 256 : 39 39 257 : 39 126 Currently Recognized Sequence 39 126 Encoded Output 39 126 Found in Dictionary!

  5. 4 x 4 x 8bit Dictionary 39 39 126 126 0 : 0 1 : 1 39 39 126 126 … : … 39 39 126 126 255 : 255 39 39 126 126 256 : 39 39 257 : 39 126 Currently Recognized Sequence 258 : 126 126 126 126 Encoded Output 39 39 126 Found in Dictionary!

  6. 4 x 4 x 8bit Dictionary 39 39 126 126 0 : 0 1 : 1 39 39 126 126 … : … 39 39 126 126 255 : 255 39 39 126 126 256 : 39 39 257 : 39 126 Currently Recognized Sequence 258 : 126 126 259 : 126 39 39 126 Encoded Output 39 39 126 39 Found in Dictionary!

  7. 4 x 4 x 8bit Dictionary 39 39 126 126 0 : 0 1 : 1 39 39 126 126 … : … 39 39 126 126 255 : 255 39 39 126 126 256 : 39 39 257 : 39 126 Currently Recognized Sequence 258 : 126 126 259 : 126 39 39 39 Encoded Output 39 39 126 126 256 39 Found in Dictionary!

  8. 4 x 4 x 8bit Dictionary 39 39 126 126 0 : 0 1 : 1 39 39 126 126 … : … 39 39 126 126 255 : 255 39 39 126 126 256 : 39 39 257 : 39 126 Currently Recognized Sequence 258 : 126 126 259 : 126 39 39 Encoded Output 39 39 126 126 39 Found in Dictionary!

  9. 4 x 4 x 8bit Dictionary 39 39 126 126 0 : 0 1 : 1 39 39 126 126 … : … 39 39 126 126 255 : 255 39 39 126 126 256 : 39 39 257 : 39 126 Currently Recognized Sequence 258 : 126 126 259 : 126 39 39 Encoded Output 39 39 126 126 39 Found in Dictionary!

  10. 4 x 4 x 8bit Dictionary 39 39 126 126 0 : 0 1 : 1 39 39 126 126 … : … 39 39 126 126 255 : 255 39 39 126 126 256 : 39 39 257 : 39 126 Currently Recognized Sequence 258 : 126 126 259 : 126 39 39 39 Encoded Output 39 39 126 126 256 39 Found in Dictionary!

  11. 4 x 4 x 8bit Dictionary 39 39 126 126 0 : 0 1 : 1 39 39 126 126 … : … 39 39 126 126 255 : 255 39 39 126 126 256 : 39 39 257 : 39 126 Currently Recognized Sequence 258 : 126 126 259 : 126 39 126 260 : 39 39 126 Encoded Output 39 39 126 126 256 126 Found in Dictionary!

  12. 4 x 4 x 8bit Dictionary 39 39 126 126 0 : 0 1 : 1 39 39 126 126 … : … 39 39 126 126 255 : 255 39 39 126 126 256 : 39 39 257 : 39 126 Currently Recognized Sequence 258 : 126 126 259 : 126 39 126 126 260 : 39 39 126 Encoded Output 39 39 126 126 256 258 126 Found in Dictionary!

  13. ETC

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