Vector Quantization Facts

• The image is partitioned into a x b blocks.

• The codebook has n representative a x b blocks called codewords, each with an index.

• Compression is

• Example: a = b = 4 and n = 1,024

  • compression is 10/16 = .63 bpp
  • compression ratio is 8 : .63 = 12.8 : 1

bpp

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