Face detection demo using OpenCV

  • Click find faces to apply the selected classifier to the image.
  • Try adjusting the settings below to see how this affects the results.
  • Try uploading your own picture.
  • Click reset to load another random test image.

What is this for?

I created this demo to make it easy for people to play around with face detection, and get an idea of what the various options in OpenCV do.

For an explanation of how face detection works using the Viola-Jones algorithm see this interview with Adam Harvey.

What do these parameters mean?

See this StackOverflow question for a brief explanation.