US 11,836,901 B2
Content adapted black level compensation for a HDR display based on dynamic metadata
Chenguang Liu, Tustin, CA (US); William Mandel, Moorpark, CA (US); Dung Trung Vo, Costa Mesa, CA (US); McClain C. Nelson, Anaheim, CA (US); and Soojung Hyun, Tustin, CA (US)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Nov. 7, 2022, as Appl. No. 18/053,304.
Application 18/053,304 is a continuation of application No. 17/169,207, filed on Feb. 5, 2021, granted, now 11,526,968.
Claims priority of provisional application 63/118,598, filed on Nov. 25, 2020.
Prior Publication US 2023/0120505 A1, Apr. 20, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G06T 5/00 (2006.01)
CPC G06T 5/009 (2013.01) [G06T 2207/20208 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
determining metadata corresponding to content, wherein the metadata comprises a black level of a reference display on which the content is presented during color grading of the content, the black level of the reference display represents a lowest luminance value achievable on the reference display, and the reference display is different from a device the content is captured with;
determining display characteristics of a target display, wherein the display characteristics comprise a black level of the target display;
determining a tone mapping function based on the metadata and the display characteristics, wherein the tone mapping function adaptively compensates for the black level of the target display when the black level of the target display is different from the black level of the reference display; and
applying the tone mapping function to the content to generate tone-mapped content, wherein the tone-mapped content is provided to the target display for presentation.