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Image Processing
• What is Image Processing?
- Manipulation and analysis of pictorial information by computer.
Image Restoration
Image Enhancement
Digital Image Processing: Introduction 1
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Image Compression
DecoderEncoderStore or
Transmit
I(x,y) I(x,y)
• Related Areas
from 3D to 2D
and geometric projection
Compute light interaction
Edge detection,
Fourier Transform,
Enchancement, etc.
Construct 3D geometric
data from input
3D geometric data 2D image
2D image 2D image
2D image 3D geometric data
Computer Vision
Image Processing
Computer Graphics
Digital Image Processing: Introduction 2
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• Applications
- Biological Research
Automatic analysis of a biological sample (specimen analysis)Bone, tissue and cell analysis (counting and classification)Analysis, classification, and matching of DNA material
- Defense/Intelligence
Automatic interpretation of earth satellite imageryRecognizing and tracking targets in real time
Digital Image Processing: Introduction 3
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- Document Processing
Scanning, archiving, and transmission of documentsAutomatic detection and recognition of printed characters
- Factory Automation
Visual inspection and assembly
- Law Enforcement
Fingerprint feature extraction, classification, and identificationDNA matching
Digital Image Processing: Introduction 4
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- Medical Diagnostic Imaging
Digital angiographySkin cancer detectionComputed tomography(3D reconstruction using multiple image projections)
- Photography
Add/Subtract objects to and from a sceneSpecial effects (morphing, warping)
Digital Image Processing: Introduction 5
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- Astronomy
Separating stars from galaxiesGalaxy classification
• Main components of an image processing system
- Software (algorithms)
- Hardware (camera, lights, frame grabber, processor)
• A simple industrial image processing system
Digital Image Processing: Introduction 6
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• The Three Processing Levels
- Low-level processing:
Standard procedures are applied to improve image quality
Procedures are required to have no intelligent capabilities
- Intermediate-level processing:
Exctract and characterize components in an image
Some intelligent capabilities are required
- High-level processing:
Recognition and interpretation
Procedures require high intelligent capabilities
Digital Image Processing: Introduction 7