AP® Computer Science Principles

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Red-eye Reduction


Flashes used by cameras will sometimes make people's eyes appear red. Many photo programs on cell phones and computers provide a feature called red-eye reduction. This feature attempts to find the unnaturally red eyes and remove the ​appearance of red eyes from the digital photo.

This is an example of:


Computers taking digital information and returning a false information to please its human masters.


The internet of things connecting cameras, photos, and databases to create better eyes in the digital photo.


Computers using digital information to filter the data and clean up the photo.


Metadata on the photos being manipulated and correct by a creative red-seeking algorithm.