| DSP Blockset | |
Compute the inverse discrete wavelet transform (IDWT) of the input signal
Library
Description
| Note The IDWT block is the same as the Dyadic Synthesis Filter Bank block in the Multirate Filters library, but with different default settings. See the Dyadic Synthesis Filter Bank block reference for more information on how to use the block. |
The IDWT block computes the inverse discrete wavelet transform (IDWT) of the input subbands. By default, the block accepts a single sample-based vector or matrix of concatenated subbands. The output is frame-based, and has the same dimensions as the input. Each column of the output is the IDWT of the corresponding input column.
You must install the Wavelet Toolbox for the block to automatically design wavelet-based filters to compute the IDWT. Otherwise, you must specify your own lowpass and highpass FIR filters by setting the Filter parameter to User defined.
For detailed information about how to use this block, see the Dyadic Synthesis Filter Bank block reference.
Examples
See Examples in the Dyadic Synthesis Filter Bank reference page.
See Also
| Dyadic Synthesis Filter Bank |
DSP Blockset |
Also see Transforms for a list of all the blocks in the Transforms library.
| | Identity Matrix | IFFT | |