Photo portrait background channel matting

Although I have no experience in drawing and deduction, I can still talk about this problem ~ ~ ~ Hehe.

If you only talk about the buttons on the clothes, of course they are with the background, right?

Technically, the higher the contrast, the better the buckle. Let me give you an example.

Red water blue

White-black

Blue yellow

Actually, it's reverse color. Use PS to find a color, ctrl+i, and you can see what the reverse color is.

In fact, you can pay attention to their background in the studio, which is usually white, red and light blue.

In fact, the buttons on clothes are regular after all. The key is hair. Short hair or straight hair is ok, perm is more annoying. In this case, it is best if people wear dark clothes, not to mention white clothes. If it's light-colored, it can be said to change clothes (I'm not sure about this, but I'll be informed to wear light-colored clothes when I go to take pictures)

It's not that difficult for photographers, so many colors are worn. ...

I am looking forward to this expert's explanation. In addition, I wish the landlord's photo studio a prosperous business ~ ~ _

This is my own experience. I didn't copy a bunch of materials for you. Ask if you don't understand anything. I will try my best to answer you.