What to do

Observe the picture above. Unless you are already familiar with this picture, in all likelihood it will not make much sense. There are just black patches on a white background.

So the name of this is “Dalmatian dog”, does this help? If not, use the help check boxes, starting with “Help  1”.


Once the dog has been seen, it stays obvious – one-shot learning has taken place.

This example once more demonstrates the amazing capability of our visual system to organise visual input into interpretable shape (with sometimes exaggerated results as shown by the “face on Mars”.

The movie in “Help 2” further demonstrates how strongly texture segregation (separating the figure from ground) is affected by motion gradients.


Gregory R (1970) “The intelligent eye” McGraw-Hill, New York (Photographer: Ronald C James)

First publication of the picture probably in Life Magazine:58;7 1965-02-19, p 120.

For the movie I gratefully thank Wim van de Grind


Created: 2002-Aug-11

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Last update 2018-01-11 by Michael Bach