Delete any unwanted object from your photo, such as extra power-line, people, text... The program will automatically inpaint the selected area to erase it. Inpaint reconstructs the selected image area from the pixel near the area boundary. Inpaint may be used to remove undesirable objects from still images.
For more info and screenshots : http://www.anwarblog.net/2009/01/inpaint-10.html