Click Image ---> Adjustments ---> Treshold. di chuyển 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 hoặc similar.
Before bạn do that, bạn need to unlock background layer. You're going to do that bởi double clicking little lock on the background layer. Then add textures.
In this Elena photo, I used a link link đã đăng to this spot.