Click Modify menu ClipImage.At the Command prompt,
enter imageclip.
Select the image to clip by selecting
the image boundary.
At the Command prompt, Enter n (New
Boundary).
Enter p (Polygonal)
or r (Rectangular), and then draw
the boundary on the image.
If you are drawing a
polygonal boundary, you are prompted to specify consecutive vertices.
To finish drawing a polygon, press ENTER or right-click anywhere
in the drawing area.