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IMAGE COMPRESSION USING WAVELETS

FADZIR, MOHD FADLI (2005) IMAGE COMPRESSION USING WAVELETS. Universiti Teknologi Petronas. (Unpublished)

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Abstract

Image compression enables images for easier data storage and data transmission. One ofnewest technique used in compressing image is wavelet transform. Wavelet widely used in application such as medical imaging, internet imaging, scanning and printing, mobile and digital cameras. Wavelets are new filter that can keep the information in both time domain and frequency domain. The special about wavelet filter is that the window can be varied by changing the frequency. The objective of the project is to create a simulation model to investigate image compression using wavelets. The investigation will makes comparative study by applying different types of wavelet techniques on different types of images. The MATLAB software is used in doing simulation. As necessary background to do the project, basic concept of image processing, wavelet theory, image compression, and information theory are learned and discussed. The simulation will use several types of wavelets families including Haar, Daubachies, Symlet, Coiflet and Biorthogonal Spline wavelets. The papers will analyze and examine the effect of difference wavelet families, filter order, filter length, decomposition level and image content and quantizer type in compressing image. After doing numerous comparisons of wavelet effects on all test images, the results of the simulation shows that Daubachies wavelets family is having the most outstanding performance compared to other wavelet families. Hence, Daubachies is the bestfilter to usein doing wavelet image compression.

Item Type: Final Year Project
Academic Subject : Academic Department - Electrical And Electronics - Pervasisve Systems - Digital Electronics - Test and Reliablity
Subject: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Engineering > Electrical and Electronic
Depositing User: Users 2053 not found.
Date Deposited: 30 Sep 2013 16:55
Last Modified: 25 Jan 2017 09:46
URI: http://utpedia.utp.edu.my/id/eprint/7657

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