As an example, the programs may be configured to perform instructions for the following control method.

At S32, the camera 20 is controlled to acquire an image of a face.

At S34, the image of the face is processed to obtain position information of the face.

At S36, according to the position information of the face, an infrared light source 12, that has an illumination range into which the face falls, is turned on, and other infrared light sources 12 are turned off or remain turned off.

Referring to FIG. 11, a computer-readable storage medium 800 according to the embodiments of the disclosure includes a computer program for use in conjunction with an electronic device 100. The computer program may be executed by a processor 30 to complete the control method according to any one embodiment of the disclosure.

As an example, the computer program may be executed by the processor 30 to complete the following control method.

At S32, the camera 20 is controlled to acquire an image of a face.

At S34, the image of the face is processed to obtain position information of the face.

At S36, according to the position information of the face, an infrared light source 12, that has an illumination range into which a face falls, is turned on, and other infrared light sources 12 are turned off or remain turned off.

The computer-readable storage medium 800 may be a storage medium built in the electronic device 100 or a storage medium that is pluggably inserted into the electronic device 100.