They’re original, aren’t they? Although not as original as the non-photoshopped version of the pic – which was darkened (oh yes), flipped and cigarette-ized:
Museum of Hoaxes: In early 2008 the top photo began circulating online, showing Obama with a cigarette in his mouth. It is not real. The original photo (bottom) was taken by Kwame Ross on Aug. 3, 2004 while then-State Sen. Obama met with constituents at the University of Illinois while campaigning to become a U.S. Senator. An unknown hoaxer digitally added the cigarette into the photo.