| Wavelet Toolbox Release Notes | |
Stationary Wavelet Transforms
| Function |
Description |
iswt |
Inverse discrete stationary wavelet transform 1-D |
iswt2 |
Inverse discrete stationary wavelet transform 2-D |
swt |
Discrete stationary wavelet transform 1-D |
swt2 |
Discrete stationary wavelet transform 2-D |
Thresholds for 1-D and 2-D De-noising and Compression
| Function |
Description |
wbmpen |
Compute threshold for wavelet, 1-D or 2-D, de-noising using penalization strategy |
wdcbm |
Compute thresholds for wavelet 1-D de-noising or compression using Birgé-Massart strategy |
wdcbm2 |
Compute thresholds for wavelet 2-D de-noising or compression using Birgé-Massart strategy |
wpbmpen |
Compute threshold for wavelet packet, 1-D or 2-D, de-noising using penalization strategy |
wthrmngr |
Threshold settings manager |
General Tree Object Functions
General tree object functions are used for Wavelet Packets 1-D and 2-D. They can also be used in a more general context involving tree objects.
| Function |
Description |
dtree |
Constructor for the class DTREE (Data Tree) |
get |
Get tree objects field contents |
ntree |
Constructor for the class NTREE (N-ary Tree) |
plot |
Graphical tree-management utility |
read |
Read values in tree object fields |
set |
Set tree objects field contents |
wptree |
Constructor for the class WPTREE (Wavelet Packet Tree) |
write |
Write values in tree object fields |
The plot function opens a window and displays the tree. This window is a visual tool for splitting, merging, and visualizing each node of the tree.
Wavelet Utilities
| Function |
Description |
centfrq |
Compute wavelet center frequency |
scal2frq |
Convert scale to frequency |
Signal Processing Utility
| Function |
Description |
wvarchg |
Find variance change points |
| | New Wavelets | Other Enhancements | |