AMBIENT LIGHT-ADAPTIVE DISPLAY MANAGEMENT

Methods are disclosed for ambient light-adaptive display management. Given an input image, image metadata, an ambient-light signal, and parameters characterizing a target display, a processor generates an ambient-light adjustment function which maps input luminance values in a reference viewing environment to output luminance values in a target viewing environment, wherein the target viewing environment is determined based on the ambient-light signal. The ambient-light adjustment function is applied to the input image and the input metadata to generate a virtual image and new metadata. A tone-mapping function based on the new metadata and target display parameters is applied to the virtual image to generate an output image. The parameters for the target display are computed based on the ambient-light signal, global dimming metadata, and the luminance characteristics of the target display. 公开了用于环境光自适应显示管理的方法。在给定了输入图像、图像元数据、环境光信号以及表征目标显示器的参数的情况下，处理器生成环境光调节函数，所述环境光调节函数将参考观看环境中的输入亮度值映射到目标观看环境中的输出亮度值，其中，所述目标观看环境是基