Qoe-Based Brightness Control For Hdr Displays

This paper proposes a brightness control method for retargeting legacy content on High Dynamic Range (HDR) displays. This method is based on a perceptual experiment that evaluates the brightness preference of users. We study the special case of screen content to better understand the effect of image statistics on human preference for brightness. The experiment concluded that brightness preference is highly content dependent. Using the data of the subjective study, we propose a new feature that analyses the source content to appropriately control the brightness of the HDR display. Based on this feature, we propose a brightness control algorithm that adjusts the luminance of display depending on the number of bright pixels in the content.