As with many of the other tips in this series, this tutorial adds a last minute "kick" to an architectural illustration. What is nice about this process is that the contrast is increased, but at the same time, the sharpness is decreased providing an interesting final outcome.
Begin by openng the image in Photoshop. The original image that I will be using is below.
Right click on the image layer and choose "Duplicate."
Next, select Filters>Blur>Guassian Blur.
The amount of blur is dependent on the size of the image and your own preference.
Once the blur is applied, set the layer blend mode to "Overlay."
Adjust the opacity of the layer if the effect is too strong.