LUMINANCE MANAGEMENT FOR HIGH DYNAMIC RANGE DISPLAYS

Managing luminance of video streams for display on HDR displays is provided. The luminance values of frames of a video stream can be monitored, and an over-bright frame can be determined if a luminance increase greater than a given luminance change within a given period of time. When a brightness jump exceeding given parameters is detected, the luminance values of the over-bright frame can be reduced. For example, luminance values can be reduced by reducing the luminance values of the over-bright frame such that the change in the average luminance is brought below the given value, and the luminance values of the modified frame can maintain relative luminances among pixels. A modified frame can be determined from the over-bright frame based on the reduced luminance values. The modified frame can be inserted into the video stream and transmitted to an HDR display to be displayed. 提供了管理视频流的亮度以用于HDR显示器上的显示。可以监视视频流的帧的亮度值，并且如果在给定时间段内亮度增加大于给定亮度改变，则可以确定过亮帧。当检测到超过给定参数的明亮度跳变时，可以减小过亮帧的亮度值。例如，可以通过减小过亮帧的亮度值，使得平均亮度的改变低于给定值