To Create a New Mask Using the Command Line

1. Enter -imask to display the following prompt:

   New or [Select Image Mask]:

2. Enter n to create a new mask. The following prompt is displayed:

   Enter an option [Polygon/Rectangular/prOperties/eXit]<eXit>:

3. Enter p to define a polygonal mask or enter r to define a rectangular mask. You must select at least three points to define a polygonal mask. Once you have selected all the points, right-click and click Enter on the shortcut menu

   The default mask properties are used to create the mask. For more information, see Changing the Image Mask Properties.