ThirdLens

See how a face model reads you

Take two photos. The app estimates your age and gender, shows how three datasets classify you, and explains what changed between your photos.

Your first name Only used to greet you. Not saved.

Before we take your photos

What we captureTwo photos of your face, taken in this app.

What the app doesEstimates age and gender, gives dataset category scores, and compares your two photos.

What we keepNothing. Photos stay in your browser and are cleared when you finish.

Your choiceYou can stop at any time.

I am 18 or older. I agree to have my photos taken and analysed. Sign with your full name

Photo 1

Look straight at the camera in good, even light. Remove glasses and hats.

Photo 2

Now change one thing: the light, your angle, or your distance from the camera.

Check your photos

Make sure your whole face is visible in both.

The app will show how each dataset classifies you: FairFace, UTKFace, LFW and this project's own balanced model. It also compares two recognition models (a general one and our own) on your photos, so you can see where they agree or disagree.

Analysing your photos

1:00

Find the face
Align and crop
Measure image quality
Compare Photo 1 with Photo 2
Estimate age, gender and dataset scores

ThirdLens

RESULTS

Here is what the model sees

Pick a dataset to see how a model trained on it classifies your first photo.

Estimated age-

Estimated gender-

Dataset category scores

Two recognition models, same two photos. Do they agree?

DeepFace (general)-

ThirdLens-

Measure	Photo 1	Photo 2

Thank you

Your two photos and results have been cleared from this device.

Why this mattersFace recognition can work better for some groups than others. Light, camera and pose can change the result. This app shows those effects.