These parameters modify
fit=facearea mode when sizing an image to zoom in and center on any faces within an image. They make it easy to auto-generate cropped avatars or profile photos.
imgix face detection is both secure and anonymous: no face information is stored in the imgix system and it is not able to identify individuals. All detection is done on the fly. imgix's face detection capabilities are compliant with Article 29 of Directive 95/46/EC by the EU Data Protection Working Party.