This technique is one of the techniques to manipulate images. Maybe you have a photo album that does not match what you expect. Maybe your picture is too dark or light, wrong position etc. Like this one, her eyes are closed. The problem is she did not have enough time for the photos again, What should we do to get her eyes open?
Before :
After :
Maybe it is very difficult for you. But it is very easy for the graphic designer, to do it follow these instructions: