Use Face⁺⁺ Detection API to detect faces within images, and get back face bounding box and token for each detected face. You can pass the face token to other APIs for further processing.
Detect API also allows you to get back face landmarks and attributes for the top 5 largest detected faces.
Face Attributes
Analyze a series of face related attributes including age, gender, smile intensity, head pose, eye status, emotion, beauty, eye gaze, mouth status, skin status, face image quality and blurriness.
Gaze Estimation
Face⁺⁺ can estimate eye gaze direction in images, compute and return high-precision eye center positions and eye gaze direction vectors.