Getting Photoshop to work for us.
Given a big directory full of images to start off with, all the same, just with people moving in the background. This technique removes all of the people, mostly and fills in the gaps from all the other images. Plus Photoshop does all the work too!
In photoshop under file>scripts> load file into stack, you'd be presented with this window, from here you then load in all of the images and as well as that tick 'Create smart object after loading layers'.
This then compiles them all into one big smart object.
After that go to Layer > Smart Objects > Stack mode > Median. (the other effects do things too but they're all produce really varied effects) - Median creates the image average, removing all the people and the blurring the clouds because they're not the still within throughout all the images.
This takes quite a while to process, considering how many images there is. Here's one I made earlier:
Before
After
Now after that, I want to create a more realistic sky, firstly I need to rasterize the image to flatten it because it's still currently a smart object. Then with the quick selection tool, brushing quickly around the image skyline I can delete the old sky and replace it with another sky from a previous image within the collection.
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