Final answer:
The conclusion that an unexplained image in a photograph must be a ghost is false and results from flawed reasoning known as an argument from ignorance fallacy.
Step-by-step explanation:
The statement that the ghostly image in your photograph cannot be explained and therefore must be a ghost is false. This conclusion is a result of flawed reasoning, specifically an argument from ignorance or a lack of evidence fallacy. Just because something cannot be currently explained does not automatically mean that the only logical conclusion is the existence of ghosts. There could be many other natural or technical explanations that have not yet been considered or discovered. Furthermore, the existence of ghostly apparitions as evidence of the paranormal is not supported by empirical scientific evidence and remains a topic of debate and speculation.