- Open the image in photoshop.
- Create a new layer.
- Lighten this new layer using the levels adjustment layer.
- Only have this new layer selected.
- Go to layer, Blur, Gaussian Blur.
- The amount of blur is up to you, its trial and error depending the the effect you want.
- Insure that the opacity is 100%.
- Then see the results.
BEFORE:
AFTER:

