Originally Posted by
Mike Buckley
Kim,
One way to create the extra space at the bottom that is needed after the tilt is corrected is to first increase the canvas size at the bottom of the image. Doing so increases the number of pixels on the long side by adding them only to the bottom. You can then clone to add the dirt to the new area at the bottom.
Depending on the software you are using, it may or may not be able to increase the canvas size. You might want to conduct a search of "canvas" in the Help area of your software.