1. Lecture 19
Figures from Gonzalez and Woods, Digital Image Processing, Second Edition, 2002.

2. Lossy Compression
Error free compression loses no information, it just looks for a more optimal way to store it. Compression is at best about 3-to-1.
Lossy compression imposes a (tolerable) distortion to store the image more efficiently. We are actually giving up something.
Compression can be 100-to-1 and indistinguishable from originals at 10-to-1 or even 50-to-1.

3. Chapter 8
Image Compression

4. Some Definitions

5. Chapter 8
Image Compression

6. Chapter 8
Image Compression

7. Optimal Predictors

8. Four Linear Predictors

9. Chapter 8
Image Compression

10. Optimal Quantization

11. Chapter 8
Image Compression

12. Chapter 8
Image Compression

13. Chapter 8
Image Compression

14. Chapter 8
Image Compression

15. Chapter 8
Image Compression

16. Transform Coding

17. Chapter 8
Image Compression

18. Common Transforms

19. Chapter 8
Image Compression

20. Chapter 8
Image Compression

21. Chapter 8
Image Compression