Wavelet Transform application to the compression of images

Authors:
Macarena Boix;BegoñA Cantó
Affiliations:
Departamento de Matemática Aplicada, Universidad Politécnica de Valencia, Escuela Politécnica Superior de Alcoy, Plaza Ferrándiz y Carbonell 2, 03801 Alcoy (Alicante), Spain;Instituto de Matemática Multidisciplinar, Universidad Politécnica de Valencia, 46022 Valencia, Spain
Venue:
Mathematical and Computer Modelling: An International Journal
Year:
2010

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Abstract

In this paper a method for image compression is described. In the Wavelet Transform technique the coefficients below a certain threshold are removed. We propose a new type of global threshold to improve the wavelet compression technique. The aim is to maintain the retained energy and to increase the compression ratio with respect to other global thresholds commonly used.