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About: Haar Wavelet Basis

Module by: Roy Ha, Justin Romberg. E-mail the authors

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Name: Haar Wavelet Basis
ID: m10764
Language: English (en)
Summary: This module gives an overview of wavelets and their usefulness as a basis in image processing. In particular we look at the properties of the Haar wavelet basis.
Subject: Science and Technology
Keywords: basis, expansion, fourier, fourier series, haar, haar wavelet, hilbert, hilbert spaces, wavelet, wavelets
License: Creative Commons Attribution License CC-BY 3.0

Authors: Roy Ha (, Justin Romberg (
Copyright Holders: Roy Ha (, Justin Romberg (
Maintainers: Mariyah Poonawala (, Prashant Singh (, Matthew Hutchinson (, Dan Calderon (, Matthew Moravec (

Latest version: 2.10 (history)
First publication date: Jul 29, 2002 12:00 am -0500
Last revision to module: Dec 26, 2013 4:17 pm -0600


PDF: m10764_2.10.pdf PDF file, for viewing content offline and printing. Learn more.
XML: m10764_2.10.cnxml XML that defines the structure and contents of the module, minus any included media files. Can be reimported in the editing interface. Learn more.

Version History

Version: 2.10 Dec 26, 2013 4:17 pm -0600 by Collins Williamson
added moravec as maintainer

Version: 2.9 Sep 2, 2011 10:09 am -0500 by Collins Williamson
webview2.0 & pdf

Version: 2.8 Jul 29, 2010 2:34 pm -0500 by Collins Williamson
2010 update

Version: 2.7 Jul 19, 2006 4:38 pm -0500 by Harika Basana
Added Matthew Hutchinson as a Maintainer

Version: 2.6 Jun 2, 2004 3:38 pm -0500 by Harika Basana
links added

Version: 2.5 Aug 15, 2003 1:42 pm -0500 by Prashant Singh
Added files for LabVIEW demo and modified text for example element.

Version: 2.4 Aug 12, 2003 12:01 pm -0500 by Prashant Singh
Added Haar synthesis VI example.

Version: 2.3 Jul 9, 2003 2:05 pm -0500 by Charlet Reedstrom

Version: 2.2 Aug 5, 2002 12:00 am -0500 by (Unknown)
Added links and metadata.

Version: 2.1 Jul 31, 2002 12:00 am -0500 by (Unknown)
First draft of module

Version: 2.0 Jul 29, 2002 12:00 am -0500 by (Unknown)
Added initial template for new module m10764

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The following citation styles comply with the attribution requirements for the license (CC-BY 3.0) of this work:

American Chemical Society (ACS) Style Guide:

Ha, R.; Romberg, J. Haar Wavelet Basis, OpenStax-CNX Web site., Dec 26, 2013.

American Medical Assocation (AMA) Manual of Style:

Ha R, Romberg J. Haar Wavelet Basis [OpenStax-CNX Web site]. December 26, 2013. Available at:

American Psychological Assocation (APA) Publication Manual:

Ha, R., & Romberg, J. (2013, December 26). Haar Wavelet Basis. Retrieved from the OpenStax-CNX Web site:

Chicago Manual of Style (Bibliography):

Ha, Roy, and Justin Romberg. "Haar Wavelet Basis." OpenStax-CNX. December 26, 2013.

Chicago Manual of Style (Note):

Roy Ha and Justin Romberg, "Haar Wavelet Basis," OpenStax-CNX, December 26, 2013,

Chicago Manual of Style (Reference, in Author-Date style):

Ha, R., & Romberg, J. 2013. Haar Wavelet Basis. OpenStax-CNX, December 26, 2013.

Modern Languages Association (MLA) Style Manual:

Ha, Roy, and Justin Romberg. Haar Wavelet Basis. OpenStax-CNX. 26 Dec. 2013 <>.