Peer demonstration in Photoshop workshop

In the workshop I couple of weeks ago we were told we had to prepare a maximum 15 minute presentation showing a relevant technique linking to compositing in Photoshop. I chose to show how to use the refine edge tool to improve selections, particularly for selecting hair.
For the tutorial I used the following two images, the landscape is my own image, and the model is from the internet.

I chose this particular model because her hair is lifted making it hard to select using a magic wand tool, for instance. 

First of all I opened the two images side by side in Photoshop. I then used the quick selection tool to select as  much of the models hair as I could (as you can see above).

I then used the arrow tool which can be found in the icon box to the left of Photoshop to drag over the selection I just made of the model and put it on top of the background landscape image. 

I then needed to make sure only the model was selected once again, this will allow the refine edge tool to be clicked on. 

This box will then pop up, showing details of the refine edge application. In the box where it says view mode I selected the black mode, as it easier for seeing the selections you are about to make. 

You then need to select smart radius and pull the slider to around 6. Then you need to click on the paint brush like icon which is the refine radius tool. Using this tool you need to paint over the colour you want to remove, this will be the colour surrounding the hair, in this case white/ blue. This will then subtract this from around the hair. 

At the end of using the refine radius brush, your image should look a bit like this, there is little sign of the white around the hair. 

After using the tool select decontaminate colours and change percentage to around 70, I also pull the slider down shift edge down a little. The final thing you need to do is make sure the output is on "New layer with mask layer" where it says output to and then click ok. 

Your model should now be on the landscape without any signs of her previous background colour.