Of all of the new functionality in L4 the one that intrigues me the most is the Sky Replacement. As I and others have mentioned there are some circumstances where the software fails to recognize that there is a sky and one of those is the case when there is very little sky in the photo. Some of my images have only traces of the sky at the top of trees and L4 sometimes fails to understand that there is a sky there at all.
I decided to see if I could work around this issue and sent the image to Photoshop. In there I created a new solid color layer with the layer color taken from one of those visible sky patches, then moved the solid color layer up to show more sky. The result, of course, looked nothing like a regular photo because the entire top of the photo was a solid color, but when that was loaded into L4 the Sky Replacement functionality recognized the solid blue as sky and I could replace the sky with one of my choosing. the mask that L4 created for the sky replacement included most of the sky sections it had not identified before.
I could then move the horizon as I wished and then re-crop back to the original image size. After that, I had a photo with the new sky that I could not replace before.
I am sure I am not the only one to have done this but since I did not see any other posts about it I thought I should mention it in case it helps anyone else.
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