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DiscreteWavelets

MATLAB

DiscreteWavelets Toolbox is now available for MATLAB!

Download

DiscreteWaveletsToolbox.zip

Installation Instructions

1. Download the DiscreteWavelets Toolbox and save the zip file to a convenient place on your computer.

2. Unzip the zip file to a place on your hard drive where you want the toolbox to reside.

3. The zip file will unzip one (large) folder called DiscreteWavelets. Important: Do not rename this folder or any subfolders inside it!! Several functions will not work if the directory structure is changed.

4. Open MATLAB R2007a or MATLAB R2007b.

5. Click on File and then Set Path...

6. Click the Add with SubFolders... button and then navigate to where you unzipped the DiscreteWavelets folder.

7. Click OK and then Save and Close

8. In the command window in MATLAB, type the command rehash and then startup. The second command initializes some global variables used by the toolbox. If you received a message that global variables have been initialized, then you are ready to go!

Known Issues

1. The functions Daub and Coif use the MATLAB Optimization Toolbox function fsolve when finding filters. There are exceptions: for values 2,4, and 6, the filters are hardcoded into the Daub routine. For values 1 and 3, the filters are hard-coded into the Coif routine. To compute other filters, you must have the Optimization Toolbox installed.

2. The function HuffmanTree only takes a uniq array that is a cell array.

3. The third argument idx of the function FiniteFourier is the negative of what it should be. That is, if you want the starting index to be m, enter -m.

4. The function Sn() needs to be multiplied by -1.

5. The folder MyFiles was omitted from the distribution. Click here to get the file. Unzip this file to the directory where you installed the DiscreteWavelets Toolbox and make sure to add the folder MyStyles to the MATLAB path.

Help

Once you have successfully installed the DiscreteWavelets Toolbox, documentation is available.

• Open MATLAB and go to Help.

• The DiscreteWavelets Toolbox should appear as one of the Help links.

• If you click the Demos tab, and then Toolboxes, you will have access to all demos that come with the DiscreteWavelets Toolbox.

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WORKSHOPS

• IMA 2011
• SACNAS 2009
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• St. Paul, MN, 2008
• San Diego, CA, 2008
• St. Paul, MN, 2007
• New Orleans, LA, 2007
• St. Paul, MN, 2006

BOOKS

• Discrete Wavelet Transformations
• Wavelet Theory

SOFTWARE

• DiscreteWavelets Package
• Computer Labs
• Live Examples

COURSE MATERIALS

• Math 316 at UST
• Student Projects

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