How to adjust selection borders?

[Emin&Trang]

I'm new to photoshop, and I was wondering how to refine the selected area in an image. I used autoomatic subject selection, but it seems like it also selected a part of the image that's not a part of the subject (the white thingy in the attached image). Is there any way to fix it?

[Ged_Traynor]

@Emin&Trang select the quick selection tool and hold the ALT key and drag to subtract from the selection, if you need to add to the selection hold the Shift key instead

[Emin&Trang]

Thanks a lot!

[Ivan Zajats]

As a quick solution you can press Q (Quick mask mode) and refine the edge with a Brush.

https://helpx.adobe.com/photoshop/using/making-quick-selections.html

There are several options, but the best one for selecting hard edges is a manual one - Pen tool.

It's more for cut outs, so if you need just a slight correction of an area, you may not need a super accurate mask.

Masking is a very big topic, I recommend tutorials by Aaron Nace (Phlearn), Jesús Ramirez (Photoshop Training Channel), Unmesh Dinda (Piximperfect). You should learn many tools and techniques to choose the best for a certain case.

Here are just a few, but they have many tutorials.

[Emin&Trang]

I've actually been looking for a good tutorial on masking, and here you are! Thank you!