How will you define "real"? Clearly the representative set of bits that make up the image are not "real". If you're attempting to determine whether the underlyi

How will you define "real"? Clearly the representative set of bits that make up the image are not "real". If you're attempting to determine whether the underlying scene was real then this photo alone may not be the best evidence. If you're trying to determine whether the image is original and unmodified, then you have already lost. The image is modified when the picture is saved on the camera itself and then any time the image is saved in any other program. If you clarify your definition of "real" then your bet may become more enticing.