The Unreasonable Effectiveness of JPEG: A Signal Processing Approach

The Unreasonable Effectiveness of JPEG: A Signal Processing Approach

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Quantization

17 of 19

17 of 19

Quantization

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The Unreasonable Effectiveness of JPEG: A Signal Processing Approach

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  1. 1 Introducing JPEG and RGB Representation
  2. 2 Lossy Compression
  3. 3 What information can we get rid of?
  4. 4 Introducing YCbCr
  5. 5 Chroma subsampling/downsampling
  6. 6 Images represented as signals
  7. 7 Introducing the Discrete Cosine Transform DCT
  8. 8 Sampling cosine waves
  9. 9 Playing around with the DCT
  10. 10 Mathematically defining the DCT
  11. 11 The Inverse DCT
  12. 12 The 2D DCT
  13. 13 Visualizing the 2D DCT
  14. 14 Introducing Energy Compaction
  15. 15 Brilliant Sponsorship
  16. 16 Building an image from the 2D DCT
  17. 17 Quantization
  18. 18 Run-length/Huffman Encoding within JPEG
  19. 19 How JPEG fits into the big picture of data compression

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