We can create hybrid images that look different based on the distance between the image and the observer by combining the high frequency information of an image and the low frequency information of another one.
https://en.wikipedia.org/wiki/Hybrid_image
We can create hybrid images that look different based on the distance between the image and the observer by combining the high frequency information of an image and the low frequency information of another one. https://en.wikipedia.org/wiki/Hybrid_image