I found some tool for object removal, maybe it will be helpful.
link: http://www.teorex.com/inpaint.html
It is alarmingly simple to use. Draw a selection around the object you
wish to remove from the picture, and run smart remove selection.
Inpaint will fill the selection area with intelligently generated
texture drawn from the surrounding image data.
Sure, it's not perfect. If you know where to look, you can detect some
visual artifacts. But the quality is superior to the results of the
clone tool alternative.
For my money, Inpaint does a good job..
