Refine Edge

The steps for refine edge:

1. Use the Quick Selection brush tool to select the part of the image you want to refine.

2. Once you have a basic rough selection click the "Refine Edge" button on the tool menu or go to Select-Refine Edge.

3.In the screen click the "smart radius" button in the Edge Detection section. This will give a softer edge to your selection.

4.In the Adjust edge you can smooth, feather, adjust contrast or shift the edge of the selection (Do what you think works best.)

5. In output, you have the option to decontaminate colors. If you want a blue color to be removed from the radius of the selection click the decontaminate colors button and increase the amount.

6. Once done, decide how you would like to out put it: New Layer, New Layer with Mask ect.

7. Click OK and you're done. :)