I have two pictures:
(1) a pic of sky with clouds (2) a pic of some patterns
I like to use (1) as basis, but want to fill clouds with the pattern in (2). How may I do this? I use Photoshop on windows.
If the color and boundary of clouds are easily distinguishable from the sky, it might be easy. But when such a distinction is not obvious, I got a problem. How may I solve this problem?