Kitchen Ghost Picture

Ashley Worster sent us a picture of her kitchen and what looks like the faint outline of a female. Is it a ghost? Does she have a ghost in her kitchen? Though the ghost picture could possibly be created through a trick of the idea, the image becomes more striking the more we look at it:

"My friend and I do ghost hunts at least once a month. We always hear footsteps, knocking, voices etc. But usually, nothing comes up in our photos. We were randomly snapping pictures throughout the house and noticed this (image of a ghostly lady). There's nothing on the wall except the lightswitches and the clock (you see to the right). I know it's not the flash, because I took two pictures in a row and there was nothing in the other photo. I brightened the picture as much as possibly and zoomed in on what I saw."