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Digital Image

Processing

Introduction Fundamentals Image spectrum Application

Key stages Elements Image model pixel

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Textbooks

A.K. Jain: Fundamentals of Digital ImageProcessing , Prentice-Hall, 1989.

R.C. Gonzalez and R.E. Woods: Digital Image

Processing , Prentice Hall, 2001.

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Journals & Conferencesin Image Processing

Journals: IEEE T IMAGE PROCESSING IEEE T MEDICAL IMAGING INTL J COMP. VISION IEEE T PATTERN ANALYSIS MACHINE INTELLIGENCE

PATTERN RECOGNITION COMP. VISION AND IMAGE UNDERSTANDING IMAGE AND VISION COMPUTING

Conferences: CVPR: Comp. Vision and Pattern Recognition

ICCV: Intl Conf on Computer Vision ACM Multimedia ICIP SPIE ECCV: European Conf on Computer Vision CAIP: Intl Conf on Comp. Analysis of Images and Patterns

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Image processing -IntroductionProcessing the digital images in two, three, and four (3

space + 1 time) dimensions Formation ( acquisition) Enhancement (pre-processing)

Analysis (segmentation, feature extraction,recognition, .)

Communication/Transmission

An image processing operation typicallydefines a new image g in terms of an existing image f.

We can transform either the range of f .

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What is a Digital Image?

Common image formats include: 1 sample per point (B&W or Grayscale) 3 samples per point (Red, Green, and Blue) 4 samples per point (Red, Green, Blue, and

Alpha, ie. Opacity)

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Image in spectrum The most important types of visible and non-visible spectrum used in

digital image

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Appl ica t ions

Image display, transmission and storage Video compression standard like HDTV Multimedia

Medical processing (Chest X -ray;tomography, MRI, ultrasonic scanning)

Remote sensing, deep -space-probe

mission Radar, sonar, acoustic imaging Robotics, computer vision

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Examples: Industrial Inspection

Human operators areexpensive, slow andunreliableMake machines do the

job insteadIndustrial vision systemsare used in all kinds of industries

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Examples: PCB InspectionPrinted Circuit Board (PCB) inspection

Machine inspection is used to determine thatall components are present and that all solder

joints are acceptable

Both conventional imaging and x-ray imagingare used

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Examples: MRI (Radio Band)

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Examples: Ultrasound Imaging

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Key Stages in Digital ImageProcessing

Image Acquisition

ImageRestoration

MorphologicalProcessing

Segmentation

Representation& Description

ImageEnhancement

ObjectRecognition

Problem Domain

Colour Image

Processing

Image

Compression

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Key Stages -Image Acquisition

Image Acquisition

ImageRestoration

MorphologicalProcessing

Segmentation

Representation& Description

ImageEnhancement

ObjectRecognition

Problem Domain

Colour Image

Processing

Image

Compression

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Key Stages -Image Enhancement

Image Acquisition

ImageRestoration

MorphologicalProcessing

Segmentation

Representation& Description

ImageEnhancement

ObjectRecognition

Problem Domain

Colour Image

Processing

Image

Compression

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Key Stages -Image Restoration

Image Acquisition

ImageRestoration

MorphologicalProcessing

Segmentation

Representation& Description

ImageEnhancement

ObjectRecognition

Problem Domain

Colour Image

Processing

Image

Compression

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Key Stages -MorphologicalProcessing

Image Acquisition

ImageRestoration

MorphologicalProcessing

Segmentation

Representation& Description

ImageEnhancement

ObjectRecognition

Problem Domain

Colour Image

Processing

Image

Compression

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Key Stages -Segmentation

Image Acquisition

ImageRestoration

MorphologicalProcessing

Segmentation

Representation& Description

ImageEnhancement

ObjectRecognition

Problem Domain

Colour Image

Processing

Image

Compression

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Key Stages -Object Recognition

Image Acquisition

ImageRestoration

MorphologicalProcessing

Segmentation

Representation& Description

ImageEnhancement

ObjectRecognition

Problem Domain

Colour Image

Processing

Image

Compression

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Key Stages -Representation &Description

Image Acquisition

ImageRestoration

MorphologicalProcessing

Segmentation

Representation& Description

ImageEnhancement

ObjectRecognition

Problem Domain

Colour Image

Processing

Image

Compression

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Key Stages -Image Compression

Image Acquisition

ImageRestoration

MorphologicalProcessing

Segmentation

Representation& Description

ImageEnhancement

ObjectRecognition

Problem Domain

Colour Image

Processing

Image

Compression

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Key Stages -Colour ImageProcessing

Image Acquisition

ImageRestoration

MorphologicalProcessing

Segmentation

Representation& Description

ImageEnhancement

ObjectRecognition

Problem Domain

Colour Image

Processing

Image

Compression

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Image Acquisition

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DIGITIZER

Pixel ,pel ( pic ture el ement) is elementary point of the image.