Several photo processing packages have a sky replacement tool. Most work reasonably well on simple images with a distinct horizon but have problems with images with 'holes' or main features having much the same shade as the original sky.

I've included the results from the Photoshop and Luminar 4 sky replacement tools for comparison. Both tools have pros/cons. Photoshop errors on the side of not overlaying sky on the main feature and Luminar 4 errors on the side of overlaying main features. In cases like this it is probably worth the effort to resort to the tried and true method of sky replacement, i.e.: mask the main feature(s) and overlay them on the sky of your choice. Of course you could also just wait to shoot the picture when the sky is just the way you want it...

Enjoy!

bwa

Several photo processing packages have a sky replacement tool. Most work reasonably well on simple images with a distinct horizon but have problems with images with 'holes' or main features having much the same shade as the original sky.

I've included the results from the Photoshop and Luminar 4 sky replacement tools for comparison. Both tools have pros/cons. Photoshop errors on the side of not overlaying sky on the main feature and Luminar 4 errors on the side of overlaying main features. In cases like this it is probably worth the effort to resort to the tried and true method of sky replacement, i.e.: mask the main feature(s) and overlay them on the sky of your choice. Of course you could also just wait to shoot the picture when the sky is just the way you want it...

Enjoy!

bwa