Patent ID: 11917171
Assignee: DOLBY LABORATORIES LICENSING CORPORATION
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 0:
1. A method for generating a bitstream comprising coded image data and metadata, the method comprising:
accessing source video signals to generate coded image data;
generating output metadata associated with the coded image data; and
generating a bitstream comprising the coded image data and the output metadata, wherein the output metadata comprise a first set of metadata and a second set of metadata, wherein:
the first set of metadata is associated with a portion of the image data and comprises one or more parameters representing characteristics of a reference display device that is used during creation of the image data to color grade the video signals, the parameters including:
a. a white point for the reference display,
b. three primaries for the reference display, and
c. at least one luminance level for the reference display; and

the second set of metadata is associated with the same portion of the image data and includes at least a luminance level for the image data.