Difficult selections like trees can be selected by using Blending If. Here is how..
- Double click on the image in Layer panel to open Blending Mode. If that doesn’t work, make sure it is no locked.
![](http://www.quicksetupguide.com/blog/wp-content/uploads/2020/06/image-13-1024x343.png)
2. Since the background is blue sky, we select Blue in Blwnd if
![](http://www.quicksetupguide.com/blog/wp-content/uploads/2020/06/image-14-1024x449.png)
3. Since we have only one layer, move the curse in this Layer from right to left until we see the transparent.
![](http://www.quicksetupguide.com/blog/wp-content/uploads/2020/06/image-15-1024x504.png)
4. You can also adjust it by hold Alt key and move the half right curse.
![](http://www.quicksetupguide.com/blog/wp-content/uploads/2020/06/image-16-1024x541.png)
5. Click OK to complete the selection.
![](http://www.quicksetupguide.com/blog/wp-content/uploads/2020/06/image-17-1024x498.png)
6. You can move another image into the original image to see the result. In our example we change the Blending mode to Overlay.
![](http://www.quicksetupguide.com/blog/wp-content/uploads/2020/06/image-18-1024x369.png)
Please view the step by step video: