What’s the Solution?
By using the free Lenny K Actions Toolkit for Photoshop or Photoshop Elements in a technique called luminosity masking.
Without going all technical, luminosity masking allows us to get Photoshop Elements to automatically select these light or dark areas of the photo so that we can make smooth controlled changes to these selected areas.
The toolkit will automatically select these light or dark areas in our photo.
We can then use the standard Photoshop tools to blend these selected areas.
You can download a free copy of The Lenny K Actions Toolkit for Photoshop or Photoshop Elements from my store.