zeus - 11:33 am on Feb 4, 2013 (gmt 0)
Just made a test over a few weeks and did so that google did not have access to my images, images count on google slowly declined until zero. Then I gave them permission again, within 24 hours 1000 images was back online. Just a note, so you will be back in short short time if something changes and trust me google want your content, so it will be back fast. Did also not note anything ranking wise.