Our visual system constantly imposes three-dimensional characteristics onto two-dimensional images. While our interpretations of these images are usually correct in ambiguous situations with more than one possible image our brain may not see all of the possibilities. In such situations there are many factors simultaneously influencing our vision. Below are a few pictures that will help demonstrate this point.
Image #1 What do you see: two faces or a vase?
Hint: Both images are there but how you see them depends on how your brain interprets the information it sees.
Image #2 What do you see; an old woman or a young girl?
Hint: The girl’s chin is the old woman’s nose and the girl’s necklace is the old woman’s mouth.
Image #4 Which soldier is tallest?
Answer: The three soldiers are the same size