Wavelet Toolbox

Two-Dimensional Extension Using the Graphical Interface

Starting the Image Extension Tool.   

1. From the MATLAB prompt, type:

   wavemenu
   

The Wavelet Toolbox Main Menu appears.

2. Click the Image Extension menu item.

Extending (or Truncating) Image.   

3. From the File menu, choose the Demo Extension option and select the first item of the list.

   

The tool displays the original image delimited by a red box and the transformed image delimited by a yellow box. The image has been extended by zero padding. The right part of the window allows you to control the parameters of the extension/truncation process for the vertical and horizontal directions, respectively. The possibilities are similar to the one-dimensional ones described in "One-Dimensional Extension" on page 2-168.

To see some more extension cases, look at the general demos of the toolbox (using the wavedemo command).

Two-Dimensional Extension

Importing and Exporting Information from the Graphical Interface