PDF COL783: Digital Image Processing

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COL783: Digital Image Processing

Prem Kalra

[email protected]

http://www.cse.iitd.ac.in/~pkalra/col783

Department of Computer Science and Engineering

Indian Institute of Technology Delhi

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General Information

Evaluation (Tentative):

Exams:

Minor, Major, Quizes (70%) Assignments >= 3 (30%) TA ??

Course Page

http://www.cse.iitd.ac.in/~pkalra/col783

Digital Image Processing

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Digital Image Processing http://www.cse.iitd.ac.in/~pkalra/col783

Digital Image Processing

Acquisition: Photography

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X-ray/CT/MRI

Electron Microscope Remote Sensing

Thermal Imaging

Other Acquisition

Modalities

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Digital Image Processing

Some Applications: Biometric and Recognition

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Digital Image Processing: Applications

Object Detection

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Digital Image Processing: Applications

Computational Photography

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2D Image 2D Image

2D Image 3D Scene/

Object

2D Image 3D Object

Image Processing

Computer Graphics Computer

Vision

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Computer Graphics

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Computer Vision

Real Scene Real

Camera Synthetic

Camera Output

Image

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Course Contents (Tentative) Fundamentals

Image Enhancement Image Segmentation Image Restoration Image Transforms

Image Compression (+Video) Image Analysis:

Representation/Description

Recognition/Identification

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Image Formation

Fundamentals

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Fundamentals

Sampling and Quantization

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Fundamentals

Sampling and Quantization

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Fundamentals

l

An image is a spatial representation of an object, a 2D or 3D scene.

l

Abstractly, an image is a continuous function defining a rectangular region of a plane

− intensity image - proportional to radiant energy received by a

sensor/detector

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Fundamentals

2D function f(x,y)

l An image can be thought of as a function with resulting values of

the light intensity at each point over a planar region.

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Fundamentals

Image Representation

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Fundamentals

Image Resolution (Spatial)

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Fundamentals

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Fundamentals

Bilinear Interpolation

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Fundamentals

Image Resolution (Intensity Levels)

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Fundamentals

Intensity/

Luminance and Brightness

Mach Band Effect

Simultaneous

Contrast

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Fundamentals

Other Operations

Neighborhood N

₄

, N

_D

, N

₈

Adjacency/Connectivity 4-connected

8-connected Distance

Euclidian D

₄

D

₈