Select > Clipboard > Crop

Use the Crop command to generate an exact copy of a specified region of interest (ROI) in an image, image sequence, or image set.

When you select the Crop command, Image-Pro creates a copy of the data within the bounds of the active ROI, and it then opens the copy as a new file to the application workspace. If a non-rectangular ROI is active when the Crop command is selected, the resulting cropped image will be composed of the pixels contained within the ROI's bounding rectangle. 

The resulting cropped image will be of the same class and logical resolution as the image from which it was created.  If a Palette image is duplicated, its palette will be copied to the new image too.  Regardless of  image class, however, descriptive attributes, such as Description, Date, and so on, will not be passed to the new image (these attributes are considered unique to a single image).