PhotoWipe

PhotoWipe is an application that is exclusively like the clone tamp you usually use in Photoshop, but it is designed to make easier to use it.

Draw a line around the object you want to eliminate and PhotoWipe will calculate and draw what there would have to be in that place according to the surrounding area.

Ok, the results are not perfect, but they are really good and good enough if you do not want to have headaches when mending your photos. Just choose the area and let PhotoWipe do the rest.

If you are going to use it, just paint in black the area you want to replace and choose the edition mode.