Japanese developers create an app that makes toys interactive.

Yuta Sugiura and a few of his colleagues at the Graduate School of Media Design, Keio University, have created an app called Cuddly that lets anyone with a camera smartphone make their stuffed toy or any soft object come alive.

Using the smartphone's camera and LED flash, the app can detect whether the stuffed animal or object is being squeezed, hugged or moved and then gives an appropriate reaction.

The app works by taking the measurement of the brightness level inside the object as detected by the camera. When the object is squeezed, the soft material inside is compressed, decreasing the brightness level. Depending on the brightness values, the app reacts to the squeezing or hugging with sound or light effects.

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