5. With your selection still active, go to your channel tab (probably the tab next to your layers tab) and click ‘create new channel’ like shown.

6. Here is what you should see in your document window.

7. Fill it with white.

8. Go to filter>blur>gaussian blur and give it a value of around 1 to 1.5 pixels. Depending on the size of your image you will have to experiment a little.

9. Now go to levels for this channel (CTRL+L) and move the sliders somewhat like how I have mine set. Tweak it until you like the edges of your object.

10. Here is what I have thus far.