How to clone out item on horizon?
I wish to learn how to clone out or remove a blur right on the horizon of the ocean.
In the attached small cut out section of a much larger photo, there is a blur on the
left edge of the ocean horizon. This was an 80 second time lapse exposure, and the
blur if from a slow moving oil tanker.
My previous retouching was never near a hard line, so I am not sure what method to use
here? Two things I can see is that clone stamp would run into trouble that close to a
hard edge, and additionally, there is a brightness or exposure gradient visible in the
clouds near that blur.
Does anyone have some ideas or tutorial on how I can deal with this one?