Preview
• Image processing stems from two principal
applications:
– Improvement of pictorial information
– Processing of i...
Preview
• Image processing stems form two principal
applications:
– Improvement of pictorial information
– Processing of i...
1.1 What is image processing
• Def. of spatial coordinates
• The intensity of the gray level
• Refers to processing digita...
The Origins of digital image
processing
• Human Perception
Chapter 1. Introduction
Preliminary skill
• Digital signal processing
– Frequency domain
• Statistics
• Algebra
• Optimization
• Calculus
• Artifi...
1.3 Examples of fields that use
digital image processing
• Industry
• Agriculture
• Medical diagnosis
• Material surface i...
1.3.1 Gamma X-ray Imaging
• Nuclear medicine
– PET ( positron emission tomography)
• Astronomical observation
1.3.2 X-ray Imaging
• Digital images are obtained by
– Digitizing X-ray film
– Having the X-rays that pass through the pat...
1.3.3 Imaging in the Ultraviolet
Band
• Lithography
• Industrial inspection
• Microscopy
• Laser
• Biological imaging
• As...
Chapter 1
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Chapter 1

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Chapter 1

  1. 1. Preview • Image processing stems from two principal applications: – Improvement of pictorial information – Processing of image data for storage, transmission and representation
  2. 2. Preview • Image processing stems form two principal applications: – Improvement of pictorial information – Processing of image data for storage, transmission and representation • Objectives – Define the scope of the field – Give a historical perspective of the origins of the field – Give an idea of the state of the art
  3. 3. 1.1 What is image processing • Def. of spatial coordinates • The intensity of the gray level • Refers to processing digital images by means of a digital computer • Def. of picture elements, image elements, pels, pixels • Human are limited to the visual band of electromagnetic (EM) • Three types of computerized processes: low-, mid- and high-level processes
  4. 4. The Origins of digital image processing • Human Perception
  5. 5. Chapter 1. Introduction
  6. 6. Preliminary skill • Digital signal processing – Frequency domain • Statistics • Algebra • Optimization • Calculus • Artificial intelligence • Write programs with C language or Matlab
  7. 7. 1.3 Examples of fields that use digital image processing • Industry • Agriculture • Medical diagnosis • Material surface imaging and visualization • Astronomy • Remote sensing – Resource exploring
  8. 8. 1.3.1 Gamma X-ray Imaging • Nuclear medicine – PET ( positron emission tomography) • Astronomical observation
  9. 9. 1.3.2 X-ray Imaging • Digital images are obtained by – Digitizing X-ray film – Having the X-rays that pass through the patient fall directly onto devices that convert X-rays to light • Angiography:for Contrast enhancement radiography • Computerized axial tomography • Industrial Processes: examine defects of circuit boards
  10. 10. 1.3.3 Imaging in the Ultraviolet Band • Lithography • Industrial inspection • Microscopy • Laser • Biological imaging • Astronomical observation

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