For all of the following photos I went into Photoshop and played around in the images and adjustments section. In that section you can adjust the photos by changing the Brightness/Contrast, Levels, Curves, and Exposure. You can actually use even more changing tools to fiddle around with the photos but those are the four that I used most. The tool that really changed the most was probably the Levels tool.
In point form. Here are a couple basic ways to modify our photo.
Brightness/Contrast
-Changes the brightness of the photo and makes certain parts darker.
Levels
Can change or entire photo and make it a lot darker than it needs to be but is good for making the photo brighter and more vibrant
Curves
-Changes the photo for if you want the photo to be more faded or more exact.
Exposure
-Fine lines certain parts of the photo to make parts stand out or fall back behind other and hide.
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