**Classical image
compression**

**Introduction**

**Summary of this section**

**Quadtree compression**

**Quad Tree Flattening**

**Reduction to 8bit colour**

** Frequency domain compression systems**

**Orthogonal Bases**

** In 2 D Geometry**

**Vectors at right angles**

**Vectors at right angles**

**Vector Lengths**

**Orthonormal vectors**

**Change of basis**

**Extension to n dimensions**

**Inner product operations**

**Transforming to and From
a Basis**

**Representation of Blocks
Using Orthogonal Bases**

** Pixels**

**Haar wavelets**

**Harr wavelets**

**DCT coefficients**

**Use of blocks in JPEG**

**Zig Zag**

**Quantization**

**Quantization continued**

**JPEG quantization**

**JPEG quantization**

**Run length encoding**

**MPEG**

**Key frames**

**Motion compensation**

**Search for best match**

**Summary**

**Where to get more
information**

**Feedback**