Dynamic tone-mapping system normalized around reference white
AssigneeNBCUniversal Media, LLC
InventorArley Christopher Seeger
Life of this patent
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Abstract
A dynamic and selective tone mapping system that receives digital imagery content and adjusts the digital imagery content using defined perceptual point parameters that correspond to particular luminance points or regions of the digital imagery content. The defined perceptual point parameters include a first white reference value, wherein the tone mapping system adjusts the digital imagery content by compressing luminance values above the first white reference value at different compression rates to produce digital imagery content that is compatible with various media viewing devices with varying display brightness capabilities while preserving influence over the intended look of the displayed image resulting from the digital imagery content.
Claims20
A perceptual point tone mapping system comprising:
- a perceptual point tone mapping circuitry configured to:
- receive imagery content;
- receive a plurality of predefined perceptual point parameters, wherein the plurality of predefined perceptual point parameters comprises a first white reference value, a peak white reference value, and a variable compression point associated with the imagery content;
- adjust the imagery content using the plurality of predefined perceptual point parameters to produce adjusted imagery content;
- and
- provide the adjusted imagery content for display by a media viewing device.
A computer-implemented method, comprising:
- receiving imagery content;
- receiving a plurality of predefined perceptual point parameters, wherein the plurality of predefined perceptual point parameters comprises a first white reference value, a peak white reference value, and a variable compression point associated with the imagery content;
- adjusting the imagery content using the plurality of predefined perceptual point parameters to produce adjusted imagery content;
- and
- providing the adjusted imagery content for display by a media viewing device.
A tangible, non-transitory, computer-readable medium, comprising computer readable instructions that, when executed by one or more processors of one or more computers, cause the one or more computers to:
- receive imagery content, wherein the imagery content comprises high dynamic range (HDR) content, standard dynamic range (SDR) content, or both;
- receive a plurality of predefined perceptual point parameters, wherein the plurality of predefined perceptual point parameters comprises a first white reference value, a peak white reference value, and a variable compression point associated with the imagery content;
- adjust the imagery content using the plurality of predefined perceptual point parameters to produce adjusted imagery content;
- and
- provide the adjusted imagery content for display by a media viewing device.
Dependencies are inferred from the claim text.