There is an underlying assumption that a given image has a certain property. I don't think it does. I think the property is based on the user viewing it. That's why an innocent silly image proud parents may send to grandparents is at the same time an image that you don't want to be in the possession of someone with less innocent thoughts. It isn't that the image is right or wrong. It is that different people will see different things in the image, some good and others bad.