How to add background when ps filter is extracted?

You don't have to drag it to another picture, just drag the picture you want to insert to the layer next to the extracted picture. You can choose different options, such as soft light effect.

Postscript (same as postscript); Police sergeant

CS3

You can choose to overlay the window so that every time you add a picture, it is a window. Select the move tool and drag the extracted picture onto the inserted picture.

In fact, you can also drag the picture below the picture you want to extract, and then force the background white+force the background black to extract twice, so that you can extract the hair faster.

I suggest you go to the forum of rainforest wood wind. There is a relatively complete tutorial there. www.ylmf.net

But there seems to be a video online. . . .