A BACKGROUND LIGHT ENHANCING APPARATUS RESPONSIVE TO A LOCAL CAMERA OUTPUT VIDEO SIGNAL

摘要

A camera of a smart phone used by a first participant in a videoconference generates a video signal containing an image of a first participant. The video signal is transmited via a communication network. A video processor of the smart phone is responsive to an input video signal received via the communication network for generating a first display drive video signal containing an image of a remote, second participant. The video processor of the smart phone valuates brightness content of the camera generated video signal and generates a second display drive video signal having brightness content that is regulated in a feedback manner to enhance background lighting.