Face Detection + Cropping

1. What is face cropping?
2. What is face detection technique?
3. How do I crop a detected face in OpenCV Python?
4. How do I crop just a face?

What is face cropping?

Face Crop uses computer vision to automatically detect faces in images. A rectangular crop focused on either all of the faces or the biggest face is then applied.

What is face detection technique?

Face detection is a computer technology being used in a variety of applications that identifies human faces in digital images. Face detection also refers to the psychological process by which humans locate and attend to faces in a visual scene.

How do I crop a detected face in OpenCV Python?

We will use haarcascade_frontalface_alt. xml for human face detection in the image. The detected face coordinates are in (x,y,w,h). To crop and save the detected face we save the image[y:y+h, x:x+w].

How do I crop just a face?

Download the YouCam Perfect App. Open the app and upload your picture. Navigate to the Cutout tool and select the face you want to cut out from the picture by “painting” over it. Save your portrait cutout!