Digital Image Processing Robin Walia ECE Department Mullana
Digital Image Processing Robin Walia ECE Department Mullana University 1
What is Image Processing? • Machine Vision • Computer Vision • Pattern Recognition • Image Processing 2
Origin of DIP Picture of earth’s moon taken by space probe in 1964. Picture made with a television camera (vidicon), transmitted to the earth by analog modulation, and digitized on the ground. Digtial Image Processing, Spring 2006 3
Medical Images Digtial Image Processing, Spring 2006 4
Multispectral Satellite Images Digtial Image Processing, Spring 2006 5
Image Processing in Manufacturing Digtial Image Processing, Spring 2006 6
Radar Image Digtial Image Processing, Spring 2006 7
Image Processing Procedures • • Image acquisition Enhancement Restoration Color processing Compression Morphological processing Segmentation Representation and description 8 Digtial Image Processing, Spring 2006
Digital Image Fundamentals • Vision 9 Digtial Image Processing, Spring 2006
Subjective Brightness Perception 10 Digtial Image Processing, Spring 2006
Chapter 2: Digital Image Fundamentals 11 Digtial Image Processing, Spring 2006
Chapter 2: Digital Image Fundamentals 12 Digtial Image Processing, Spring 2006
Chapter 2: Digital Image Fundamentals 13 Digtial Image Processing, Spring 2006
Chapter 2: Digital Image Fundamentals 14 Digtial Image Processing, Spring 2006
Image Sensing and Acquisition • • Single sensor Line scan Array sensor Other (MRI, Ultrasound) 15 Digtial Image Processing, Spring 2006
Chapter 2: Digital Image Fundamentals 16 Digtial Image Processing, Spring 2006
Chapter 2: Digital Image Fundamentals 17 Digtial Image Processing, Spring 2006
Chapter 2: Digital Image Fundamentals 18 Digtial Image Processing, Spring 2006
Chapter 2: Digital Image Fundamentals 19 Digtial Image Processing, Spring 2006
Image Sampling and Quantization • Actual image is continuous • Digital image has a finite number of pixels and levels 20 Digtial Image Processing, Spring 2006
Chapter 2: Digital Image Fundamentals 21 Digtial Image Processing, Spring 2006
Spatial and Gray-Level Resolution • Photo Id: w 100 x 100 pixels, 4 bits (grey scale) § Color adds 50% • Photo image w Depends when you bought a digital camera • Film editing practice: 2048 x 1536 color pixels, 10 bit • Advertising copy (Vogue) w 30 Mb 22 Digtial Image Processing, Spring 2006
Chapter 2: Digital Image Fundamentals 23 Digtial Image Processing, Spring 2006
Basic Relationships • • • Neighors and Neighborhoods Adjacency and connectivitiy Distance measures Pixel operations Linear and nonliear operations 24 Digtial Image Processing, Spring 2006
- Slides: 24