Determination of luminance values using image signal processing pipeline
AssigneeNVIDIA Corporation
InventorsSean Midthun Pieper, Robin Brian Jenkin
Life of this patent
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Abstract
Apparatuses, systems, and techniques to receive, at one or more processors associated with an image signal processing (ISP) pipeline for a camera, an image generated using an image sensor of the camera, wherein the image comprises a plurality of channels associated with color information of the image; process, by the one or more processors, the plurality of channels of the image to generate a plurality of luminance and/or radiance values; generate, by the one or more processors, an updated version of the image using the plurality of luminance and/or radiance values; and output the updated version of the image.
Claims20
A method comprising:
- processing, using one or more processors, a plurality of channels associated with color information in a color space of an image to generate a second plurality of channels associated with corrected color information in a corrected color space;
- determining, using the one or more processors, a plurality of luminance values based at least in part on the second plurality of channels and an exposure value of a camera that captured the image;
- and
- generating, using the one or more processors, an updated version of the image using the plurality of luminance values.
A method comprising:
- generating, using one or more processors, a plurality of luminance values based at least in part on a plurality of color channels of an image captured by a camera;
- adjusting, using the one or more processors, the plurality of luminance values based at least in part on a luminance calibration factor of the camera to obtain a plurality of calibrated luminance values;
- and
- generating, using the one or more processors, an updated image based at least in part on the plurality of calibrated luminance values.
A method comprising:
- generating, using one or more processors, a plurality of luminance values based at least in part on a plurality of color channels of an image captured by a camera;
- adjusting, using the one or more processors, the plurality of luminance values based at least in part on an exposure value of the camera when the image was captured and a reference exposure value to obtain a plurality of normalized luminance values;
- and
- generating, using the one or more processors, an updated image based at least in part on the plurality of normalized luminance values.
Dependencies are inferred from the claim text.