Adaptive high dynamic range (HDR) tone mapping with overlay indication
AssigneeSamsung Electronics Co., Ltd.
InventorsYeong-Taeg Kim, Seongnam Oh, Soojung Hyun, Li Tao
Life of this patent
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Abstract
A method for video tone mapping includes receiving an overlay indication from an input data stream indicating whether a graphic is being overlaid on image data for a High Dynamic Range (HDR) scene. Based on the overlay indication, a hardware processor processes a video stream using a first tone mapping function to generate a first tone mapped video, or a second tone mapping function to generate a second tone mapped video.
Claims20
A method for video tone mapping, comprising:
- receiving, by a hardware processor, an overlay indication from an input data stream;
- determining, by the hardware processor, whether or not the overlay indication indicates that a graphic is being overlaid on image data for a High Dynamic Range (HDR) scene in an HDR video stream;
- and
- based on the overlay indication, processing, by the hardware processor, the HDR video stream using:
- 1) a first tone mapping function to generate a first tone mapped video when the overlay indication is determined to indicate that the graphic is not being overlaid, or 2) a second tone mapping function to generate a second tone mapped video when the overlay indication is determined to indicate that the graphic is being overlaid.
An apparatus comprising:
- a memory storing instructions;
- and
- at least one processor executing the instructions including a process configured to:
- receive an overlay indication from an input data stream;
- determine whether or not the overlay indication indicates that a graphic is being overlaid on image data for a High Dynamic Range (HDR) scene in an HDR video stream;
- and
- based on the overlay indication, process the HDR video stream using:
- 1) a first tone mapping function to generate a first tone mapped video when the overlay indication is determined to indicate that the graphic is not being overlaid, or 2) a second tone mapping function to generate a second tone mapped video when the overlay indication is determined to indicate that the graphic is being overlaid.
A non-transitory processor-readable medium that includes a program that when executed by a processor performs a method comprising:
- receiving, by a hardware processor, an overlay indication from an input data stream;
- determining, by the hardware processor, whether or not the overlay indication indicates that a graphic is being overlaid on image data for a High Dynamic Range (HDR) scene in an HDR video stream;
- and
- based on the overlay indication, processing, by the hardware processor, the HDR video stream using:
- 1) a first tone mapping function to generate a first tone mapped video when the overlay indication is determined to indicate that the graphic is not being overlaid, or 2) a second tone mapping function to generate a second tone mapped video when the overlay indication is determined to indicate that the graphic is being overlaid.
Dependencies are inferred from the claim text.