Digital Image Processing, 2nd ed. www.imageprocessingbook.com © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 – Image Compression.

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Presentation transcript:

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 – Image Compression

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression Compression can take place only if we have redundant information Image compression Coding redundancy – Fewer bits to represent frequent symbols – Huffman coding : Lossless Interpixel redundancy – Neighboring pixels have similar values – Predictive coding : Lossless Psychovisual redundancy – Quantization : Lossy – Remove information that human visual system cannot perceive – Removal of high frequency data : Lossy

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression Information is lost during compression – Lossy – Consumer TV signals – Consumer images : web, Digital cameras Information preserving – Lossless – Medical imaging

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression Chapter 8 Image Compression

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression Chapter 8 Image Compression

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression Chapter 8 Image Compression

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression Chapter 8 Image Compression

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression Chapter 8 Image Compression

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression Chapter 8 Image Compression

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression Chapter 8 Image Compression

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression Chapter 8 Image Compression

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression Chapter 8 Image Compression

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression Chapter 8 Image Compression

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression Chapter 8 Image Compression

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression Chapter 8 Image Compression

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression Chapter 8 Image Compression

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression Chapter 8 Image Compression

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression Chapter 8 Image Compression

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression Chapter 8 Image Compression

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression Chapter 8 Image Compression

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression Chapter 8 Image Compression

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression Chapter 8 Image Compression

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression Chapter 8 Image Compression

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression Chapter 8 Image Compression

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression Chapter 8 Image Compression

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression Chapter 8 Image Compression

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression Chapter 8 Image Compression

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression Chapter 8 Image Compression

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression Chapter 8 Image Compression

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression Chapter 8 Image Compression

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression Chapter 8 Image Compression

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression Chapter 8 Image Compression

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression Chapter 8 Image Compression

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression Chapter 8 Image Compression

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression Chapter 8 Image Compression

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression Chapter 8 Image Compression

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression Chapter 8 Image Compression

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression Chapter 8 Image Compression

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression Chapter 8 Image Compression

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression Chapter 8 Image Compression

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression Chapter 8 Image Compression

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression Chapter 8 Image Compression

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression Chapter 8 Image Compression

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression Chapter 8 Image Compression

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression Chapter 8 Image Compression

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression Chapter 8 Image Compression

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression Chapter 8 Image Compression

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression Chapter 8 Image Compression

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression Chapter 8 Image Compression

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression Chapter 8 Image Compression

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression Chapter 8 Image Compression

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression Chapter 8 Image Compression

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression Chapter 8 Image Compression

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression Chapter 8 Image Compression

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression Chapter 8 Image Compression

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression Chapter 8 Image Compression

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression Chapter 8 Image Compression

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression Chapter 8 Image Compression

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression Chapter 8 Image Compression Table 8.14 (Cont’)

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression Chapter 8 Image Compression

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression Chapter 8 Image Compression

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression Chapter 8 Image Compression

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression Chapter 8 Image Compression

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression Chapter 8 Image Compression

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression Chapter 8 Image Compression

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression Chapter 8 Image Compression

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression Chapter 8 Image Compression Table 8.19 (Con’t)

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression Chapter 8 Image Compression

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression Chapter 8 Image Compression

Digital Image Processing, 2nd ed. © 2002 R. C. Gonzalez & R. E. Woods Chapter 8 Image Compression Chapter 8 Image Compression