Dynamic power management for an HDR display

A method comprising:

• receiving, by a target display device, an input media signal including a portion of image data to be rendered with the target display device;
• determining, based on luminance values as determined from the portion of image data, whether a first power profile among a plurality of power profiles for illuminating pixels is to be applied to rendering the portion of image data with the target display device;
• and
• in response to determining, based on the luminance values as determined from the portion of image data, that the first power profile is not to be applied to rendering the portion of image data with the target display device, performing:
• determining, based on the luminance values as determined from the portion of image data, a set of highlight spatial regions in one or more images represented in the portion of image data;
• determining, based on the luminance values as determined from the portion of image data, a highlight peak luminance value for the set of highlight spatial regions;
• rendering the portion of image data with the target display device by applying a second power profile among the plurality of power profiles, wherein the first and second power profiles differ, wherein the set of highlight spatial regions is illuminated up to a highlight peak luminance limit, wherein non-highlight spatial regions in the one or more images are illuminated up to a full screen maximum luminance value that is lower than the highlight peak luminance limit,
• wherein the first power profile represents a constant light profile, and the second power profile represents one of global dimming profiles, local dimming profiles, and highlight local dimming profiles.