Facial Detection

Tasks

• detect_faces: finds faces and marks them with numbered boxes
• crop_faces: crops the image to one face, several faces or all faces
• pixelate_faces: pixelates faces
• blur_faces: blurs faces

Choosing Faces

The faces parameter selects faces by number, as a list, or with faces:all. The minsize and maxsize parameters filter out detected objects that are too small or too large to be faces.

Crop Modes

• thumb: adds space around the face
• crop: crops to the face only
• fill: gives priority to the requested width and height

Uses

• Profile pictures
• Hiding faces in user photos
• Thumbnails centered on people