I’ve been told that you can only Photoshop something in front of an existing object, but not behind it – why is that? Also how does it work when something is photoshopped to match the background of the image – when that thing wasn’t even in the original image as the view was blocked? For example you photoshopped someone who’s standing in front of a tree out – how can you photoshop the tree back on that was originally partially blocked by the said person ?
In: Technology
It’s not that you can’t put something behind another thing, it’s that the… farther you go into the image the harder it becomes. It’s more dependent upon the skill of the user.
If you zoom way in to the borders between things in an image(assuming a photograph) the boundaries aren’t typically sharp. There are at least a few pixels’ worth of “blurriness” between them. The ability to match that blurriness without it being detectable is often difficult.
As far as “matching the background” do you mean removing something from an image to make it appear as if it were never there?
The simplest answer is you can copy the existing background onto the area you want to cover. If you have access to other imagery of the same thing that lets you see more of it, you can potentially make it easier on yourself by using that or finding similar imagery.
If you are limited to the pixels available in a single image, it’s potentially more difficult, but not impossible.
Artistry and skillful tool manipulation.
When you have a 2D canvas like a photo, you can only draw on top of the canvas, there is no behind.
However, if you had created the image modern image processing applications are smarter than that: You can have multiple layers on which you work, which at the end are all merged into one and then exported.
So you can have a layer of the background, which is white. Then you have a (transparent) layer for the ground of the forest. Then you have a (transparent) layer with the trees in the forest. And then you have a (transparent) layer with the kids walking between the trees. Did you forget something on ground level just around the kids walking? Well luckily for you all changes are only made the ground level layer while the trees in front of it and the kids in front of it are unaffected by the changes.
So, creating an new image: You can have multiple layers while creating it. Editing a single image: you can only edit what you see.
You can. Also, to make something match the background use the content-aware fill tool. If you really need help, dm me and I can walk you through it, or just do it for you.
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