Click Image ---> Adjustments ---> Treshold. 移動する a little cursor to increase/decrease visibility.
Click on your background image on the panel on the right and instead of normal choose screen,lighten または similar.
Before あなた do that, あなた need to unlock background layer. You're going to do that によって double clicking little lock on the background layer. Then add textures.
In this Elena photo, I used a link link 投稿されました to this spot.