To use Convolution filters:

1. From the softWoRx main menu, choose Filter | Convolution to open the Convolution window.

2. In the Input field, enter an image file name or window number.

3. To include only selected data, click Details to open the Region Details window. Then specify the ranges of data that you want to include in the Output Options fields.

4. Select which wavelengths to filter.

5. In the Filter option list, select which filter to use.

6. To customize the filter, change the values in the numbered grid.

7. Click Do It to run the filter.