My father-in-law has a painting by Vu Cao Dam of two girls and a man on horseback. He found a hidden fox in the painting, and today we were looking at it and found some more.
What do you call it when an artist intentionally puts a hidden image within a larger work of art? My father-in-law swears there is a word, and that it is a general term which can apply to different media. It can apply to actors who make cameos or easter eggs in software.
What word is this?