Onion with Hidden Human Profiles - Optical Illusion Art #161336 (License: Personal Use)

This minimalist black-and-white illustration uses clean contour lines to depict a halved onion, whose concentric layers subtly shape two opposing human profiles. The central fissure acts as both the onion’s cut edge and the shared boundary between the faces, creating a striking visual paradox. The design exemplifies figure-ground perception and is often used to illustrate Gestalt principles in cognitive science and visual arts.

Commonly featured in psychology textbooks, design blogs, or educational content about optical illusions and perceptual ambiguity; users seek it to demonstrate how context and expectation shape visual interpretation.