Try This:

Open your rendered image in photoshop

Click on Filter->Blur->Gaussian Blur
when the Gaussian Blur dialogue box comes up, set Radius to 3.0
then click OK

Now, after the blur is applied, click on Edit->Fade Gaussian Blur
When the Fade dialogue box comes up, leave the Opacity at 100%
and change the mode to Darken

there ya go.

3D Digital Comics & Art/My homepage
http://www.edgeversemedia.com