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DIRECTOR:A.SURENDRASTORY FROM:

WIKIPEDIAAUTHORSTREAM.COMSCRIBD.COMIEEE MAGAZINE

s

Digital Image Processing

Guided by:

M.r.laxman kumar sir..

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OBJECTIVES

INTRODUCTION

APPLICATIONS

EXAMPLES

IMAGE AQUITIATION and DIGITIZER

DIGITAL CAMERA

PRINTER

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What is a digital image?

What is an image?

Picture, Photograph

Visual data

Usually two- or three-dimensional

What is a digital image?

An image which is discretized, i.e., defined on a

discrete grid (ex. scanner)

Two-dimensional collection of light intensity values(or gray values)

Matrix, two-dimensional function

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What is digital image processing?

What is digital image processing?

Digital image processing deals with themanipulation and analysis of pictures by acomputer.

Improve pictorial information for better clarity(human interpretation).

Automatic machine processing of scene data(interpretation by a machine/non-human,storage, transmission).

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Important steps in a typical image

processing system

Image Acquisition

Discretization/DigitizationQuantizationCompression

Image enhancementand restoration

Image Segmentation

Feature Selection

Image Representation

Image Interpretation

Partition image into objects

or constituent parts

Extracting pertinent features (ordescriptors) from an image thatare important for differentiatingone class of objects fromanother

Assigning labels to an object basedon information provided by descriptors

Assigning meaning to anensemble of recognized objects

Capturing visual data byan imaging sensor

Convert data into discrete formCompress for efficientstorage/transmission

Improving image quality(low contrast, blur, noise)

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