Liftwave Example Codes

Introducing liftscheme class

Liftscheme class declares a lifting scheme and you can add lifting stages using addlift.

This program

1) Declares a lifting scheme

2) Adds a lifting step

3) Displays The Information About All The Lifting Stages

The Output :

1D Lifting Wavelet Transform Example

This program

1. Uses a Length 16 pseudo-random sequence as Input.

2. Defines a lifting scheme based on db3 wavelet and adds a dual lifting step.

3. Performs a 2 Level Lifting Wavelet Transform

4. Performs an Inverse Lifting Transform on the LWT class so defined.

The Output :

2D Lifting Wavelet Transform Example

This program

1) Uses an 11X8 matrix as input.

2) Defines a Lifting Scheme (bior3.3)

3) Performs a 2 level 2D Lifting Wavelet Transform.

4) Performs a corresponding Inverse LWT.

The Output :