This reminds me of a thread the other day about Susan Sontag. To me it was nonsense, she was trying to sound clever with some simple ideas. This is the same.
When I take a picture of a person, that person remains a subject. The picture changes nothing about that.
The picture is an object, true, with the image of a person. But as Magritte already noted: "Ceci n'est pas une pipe" (this is not a pipe). The picture is not a substitute for the original, it is just a representation of it. It might remind us of the original, the subject, but it never ever is the original.
In the end, this is just playing with definitions. It has no meaning. Hence, the answer to the question is a resounding no!
And to the people who say it depends on the viewer: not true. Whatever you think of a picture, has nothing to do with the FACT that it is just a representation of the original.