Question about Computers & Internet
A growing number of digital cameras now include a Face
Recognition mode. The camera detects faces in a scene and then automatically
focuses (AF) and optimizes exposure (AE) and, if needed, flash output.
The technology can be effective when taking pictures of large groups, when a person is in the distance or when the subject moves into the frame. Even if a person moves, the camera will stay focused on it and adjust exposure. It is also effective when photographing people in bright light when the LCD is difficult to see.
Some digital cameras also have a tracking function that allows the user manually give priority to a single face. This comes in handy when taking photos in a crowd, at school plays and similar function.
Face the digital camera A person’s face must be facing towards the camera for Face Recognition AF/AE to work most effectively. Like so many digital camera features, it also works best when taking photos in good light.
Face Recognition, also known as Face Priority, is typically activated when switching a camera to portrait mode or a dedicated face-detecting shooting mode. Since the technology is hardware based, it is generally faster than manually composing and locking focus and exposure on a face.
A word of caution about using face detection It’s important to note that Face Detection (FD) may be associated with a multi-point autofocus mode, where the camera, not you, determines where to focus. When a face is not detected in a scene, the camera will revert to this mode.
Many photographers find multi-point autofocus mode to be inconsistent, if not unreliable. They use Single Area focus instead to have precise control of where the camera locks focus. They only switch to FD mode when photographing people.
Posted on Apr 20, 2009
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Posted on Jan 02, 2017
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