Hello,
I'm afraid one cannot be sure the date of creation of a picture is really that one shown under DateCreation.
I have found a picture of my daughter sitting outside in a t-shirt and the DateCreation is 29.1.2005, in the middle of the winter, so that that date cannot be right.
The DateLastWrite is the 15.7.2006, in the middle of the summer, but in the year 2006 and not 2005!
I don't see any way to get rid of that problem. Do You?
Best regards
Aloha