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Digital Image Processing. Robin Walia ECE Department Mullana University. What is Image Processing?. Machine Vision Computer Vision Pattern Recognition Image Processing. Origin of DIP.
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Digital Image Processing Robin Walia ECE Department Mullana University
What is Image Processing? • Machine Vision • Computer Vision • Pattern Recognition • Image Processing
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
Medical Images Digtial Image Processing, Spring 2006
Multispectral Satellite Images Digtial Image Processing, Spring 2006
Image Processing in Manufacturing Digtial Image Processing, Spring 2006
Radar Image Digtial Image Processing, Spring 2006
Image Processing Procedures • Image acquisition • Enhancement • Restoration • Color processing • Compression • Morphological processing • Segmentation • Representation and description Digtial Image Processing, Spring 2006
Digital Image Fundamentals • Vision Digtial Image Processing, Spring 2006
Subjective Brightness Perception Digtial Image Processing, Spring 2006
Chapter 2: Digital Image Fundamentals Digtial Image Processing, Spring 2006
Chapter 2: Digital Image Fundamentals Digtial Image Processing, Spring 2006
Chapter 2: Digital Image Fundamentals Digtial Image Processing, Spring 2006
Chapter 2: Digital Image Fundamentals Digtial Image Processing, Spring 2006
Image Sensing and Acquisition • Single sensor • Line scan • Array sensor • Other (MRI, Ultrasound) Digtial Image Processing, Spring 2006
Chapter 2: Digital Image Fundamentals Digtial Image Processing, Spring 2006
Chapter 2: Digital Image Fundamentals Digtial Image Processing, Spring 2006
Chapter 2: Digital Image Fundamentals Digtial Image Processing, Spring 2006
Chapter 2: Digital Image Fundamentals Digtial Image Processing, Spring 2006
Image Sampling and Quantization • Actual image is continuous • Digital image has a finite number of pixels and levels Digtial Image Processing, Spring 2006
Chapter 2: Digital Image Fundamentals Digtial Image Processing, Spring 2006
Spatial and Gray-Level Resolution • Photo Id: • 100x100 pixels, 4 bits (grey scale) • Color adds 50% • Photo image • Depends when you bought a digital camera • Film editing practice: 2048x1536 color pixels, 10 bit • Advertising copy (Vogue) • 30 Mb Digtial Image Processing, Spring 2006
Chapter 2: Digital Image Fundamentals Digtial Image Processing, Spring 2006
Basic Relationships • Neighors and Neighborhoods • Adjacency and connectivitiy • Distance measures • Pixel operations • Linear and nonliear operations Digtial Image Processing, Spring 2006