Wavelet Toolbox

Using Wavelet Packets

This chapter describes wavelet packets.

• About Wavelet Packet Analysis
• One-Dimensional Wavelet Packet Analysis
• Two-Dimensional Wavelet Packet Analysis
• Importing and Exporting from Graphical Tools

The Wavelet Toolbox contains graphical tools and command line functions that let you

• Examine and explore characteristics of individual wavelet packets
• Perform wavelet packet analysis of one- and two-dimensional data
• Use wavelet packets to compress and remove noise from signals and images

This chapter takes you step-by-step through examples that teach you how to use the Wavelet Packet 1-D and Wavelet Packet 2-D graphical tools. The last section discusses how to transfer information from the graphical tools into your disk, and back again.

Because of the inherent complexity of packing and unpacking complete wavelet packet decomposition tree structures, we recommend using the Wavelet Packet 1-D and Wavelet Packet 2-D graphical tools for performing exploratory analyses.

The command line functions are also available and provide the same capabilities. However, it is most efficient to use the command line only for performing batch processing.

Note    For more background on the wavelet packets, you can see the section Wavelet Packets.

Some object-oriented programming features are used for wavelet packet tree structures. For more detail, refer to Object-Oriented Programming.

Suggestions for Further Analysis

About Wavelet Packet Analysis