Getting a pinpoint selection of an object in Photoshop is one of the most basic skills but also can be one of the hardest tasks to do. Here are five tips for getting accurate selections on even the most difficult details.
Nothing looks worse in Photoshop than a bad composite. Poor cutouts, out of place color casts, and jagged selections are all common mistakes. Even experienced photographers have trouble with this. However, the most difficult selection of all is a person’s hair. Hair can become a never-ending process to accurately select it with all of its detail and range of colors.
This video from Tutvid’s Nathaniel Dodson offers a handful of tips on overcoming these frustrating areas. This tutorial provides a full workflow on selecting a subject. Dodson relies on Photoshop’s select and mask tool, but as you’ve likely experienced it isn’t a perfect option. Much of the battle is learning how to use the options and sliders inside of the tool. If appropriately used, Photoshop can do most of the work itself.
I’ll also add that when doing a composite of any kind, there are two things you need to do. First, it's imperative that you zoom in and check every edited edge. You will always find an overlooked area that will need correcting. Second, take some time away from your image after you finish. Often you will return, and upon your first look, you will see something obviously out of place. Dodson has several more tips in his video above. You should check it out!