You don&#x27;t need all photos, you can run a basic face recognition algorithm like the ones used in cameras to identify good candidates and just filter all other photos.<p>Profile photos are good enough, and with the amount of selfies people are taking there should be more than enough candidates for a full facial recognition matching.<p>Also facebook isn&#x27;t the only social network, LinkedIn profile pictures are usually much better for facial recognition Google+ profile pictures are also usually quite good because they crop your face into that silly circle.