1. S. Mandayam/ DIP/ECE Dept./Rowan University Digital Image Processing ECE.09.452/ECE.09.552 Fall 2009 Shreekanth Mandayam ECE Department Rowan University http://engineering.rowan.edu/~shreek/fall09/dip/ Lecture 1 September 14, 2009

2. S. Mandayam/ DIP/ECE Dept./Rowan University http://www.apple.com/iphone/

3. S. Mandayam/ DIP/ECE Dept./Rowan University

4. http://hubblesite.org/ “Pillars of Creation” Eagle Nebula (M16) Supernova remnant: Crab Nebula Jupiter Galaxies from Ultra-Deep-Field

5. S. Mandayam/ DIP/ECE Dept./Rowan University

6. ABA E-13B Font

7. S. Mandayam/ DIP/ECE Dept./Rowan University

10. Biometrics

11. Plan What is an image? Mathematical representation of monochromatic images What is a digital image? Digital image processing Fundamental steps Why do we need this? Course logistics Self-Assessment Test Sampling & Quantization Image Preprocessing Pre-Lab 1

12. S. Mandayam/ DIP/ECE Dept./Rowan UniversityImages x y f(x, y) row column Sample Quantize

13. S. Mandayam/ DIP/ECE Dept./Rowan University Digital Image x y Gray Level f(x,y)

14. S. Mandayam/ DIP/ECE Dept./Rowan University Color Images R B G W M CY Mixtures of Light: Additive Primaries

15. S. Mandayam/ DIP/ECE Dept./Rowan University R+G+B R G B R G B R G B R G B R G B R G B

16. S. Mandayam/ DIP/ECE Dept./Rowan University RGB Color Space

17. S. Mandayam/ DIP/ECE Dept./Rowan University Fundamental Steps Image Acquisition Image Acquisition Preprocessing Segmentation Representation & Description Representation & Description Recognition & Interpretation Recognition & Interpretation Problem Domain Knowledge Base Knowledge Base Result

18. S. Mandayam/ DIP/ECE Dept./Rowan University The Human Eye http://webvision.med.utah.edu/anatomy.html Section of human retina Sagittal section of adult human eye

19. S. Mandayam/ DIP/ECE Dept./Rowan University Perceived Brightness

20. S. Mandayam/ DIP/ECE Dept./Rowan University Perceived Contrast

21. S. Mandayam/ DIP/ECE Dept./Rowan University Optical Illusions

22. S. Mandayam/ DIP/ECE Dept./Rowan University DIP: Details

23. S. Mandayam/ DIP/ECE Dept./Rowan University DIP: Course Logistics http://engineering.rowan.edu/~shreek/fall09/dip/

24. S. Mandayam/ DIP/ECE Dept./Rowan University Sampling & Quantization Sampling demos/demo1sampling_and_quantization/demo_sampling.m Quantization demos/demo1sampling_and_quantization/demo_quant.m

25. S. Mandayam/ DIP/ECE Dept./Rowan University Image Preprocessing Enhancement Restoration Spatial Domain Spectral Domain Point Processing >>imadjust >>histeq Spatial filtering >>filter2 Filtering >>fft2/ifft2 >>fftshift Inverse filtering Wiener filtering

26. S. Mandayam/ DIP/ECE Dept./Rowan University Point Processing (Intensity Transformation) s(x,y) = T{ r(x,y)} Transformed Gray Level Original Gray Level Transformation Function >>imadjust

27. S. Mandayam/ DIP/ECE Dept./Rowan University Pre-Lab 1: Intro to Matlab IP Toolbox http://engineering.rowan.edu/~shreek/fall09/dip/ipintro.html

28. S. Mandayam/ DIP/ECE Dept./Rowan UniversitySummary