James Sumners

Welcome to my MATH 4990 (Senior Seminar) research project web page. Here you will find the text of my article, the source code to my Haar wavelet image compression program, and various items used to prepare the article.

James Sumners
22 July 2008

Abstract

In this article we examine two methods of image compression. We compare the Discrete Cosine Tranform II, the basis of the JPEG image format, with the Discrete Wavelet Transform. Specifically, we examine how the Haar Wavelet can be used to compress images, and how it compares with JPEG compression. The main focus of the article is the Discrete Wavelet Transform and the theory behind it.

Files

Software

Images Used In Article

DCT Error
DCT error plot (threshold 20).
DCT Compression
DCT compression ratio plot (threshold 20).
DCT A
Original image nonzero plot.
DCT 20
DCT compressed (threshold 20).
DCT 70
DCT compressed (threshold 70).
Original fractal
Original fractal image.
Wavelet Error
Wavelet error plot (threshold 48).
Wavelet compression
Wavelet compression ratio plot (threshold 48).
Wavelet 48
Wavelet compressed (threshold 48).
Wavelet 150
Wavelet compressed (threshold 150).