a before and after of photos that Patty Allison has "Imbued With Hues", her website and face book page name

Be sure to increase the resolution to 720 for high def

http://www.imbuedwithhues.com/
https://www.facebook.com/imbuedwithhues

For a newspaper interview she did about the process... http://www.pressherald.com/2013/08/05/portland-history-gets-dash-of-color_2013-08-05/