Fig. 4From: Face masks affect emotion categorisation, age estimation, recognition, and gender classification from facesSamples from the VISGRAF database used in the age estimation task. Top panel shows unmasked (A) and masked (B) female faces; bottom panel shows unmasked (C) and masked (D) male faces. Age range ascends from left to right: 20–29, 30–39, 40–49 and 50–79Back to article page