group face hybrid

Hybrid images change interpretation as a function of viewing distance. Hybrids combine the low-spatial frequencies of one picture with the high spatial frequencies of another picture producing an image with an interpretation that changes with viewing distance. In this figure, the people may appear sad, up close, but step back a few meters and look at the expressions again. Hybrid images are a technique first published by Philippe Schyns & Aude Oliva (1994).

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