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US 12,726,730 B2Granted
Color fringing processing independent of tone mapping
AssigneeGoPro, Inc.
InventorsGuillaume Matthieu Guérin, Julien Caron
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Abstract
Systems and methods are disclosed for image signal processing. For example, methods may include receiving an image from an image sensor, detecting, in a linear domain, color fringing areas in the image, correcting detected color fringing areas to obtain a corrected image, performing tone mapping to the corrected image to obtain a tone mapped image and storing, displaying, or transmitting an output image based on at least the tone mapped image.
Claims20
A method comprising:
- accessing an image from an image sensor;
- detecting color fringing areas in the image;
- performing tone mapping to the image to obtain a tone mapped image prior to color correction of the image based on the color fringing areas;
- and
- storing, displaying, or transmitting an output image based on at least the tone mapped image.
2 more elements
A system, comprising:
- an image sensor configured to detect an image;
- and
- an image processor configured to access the image and comprised of:
- a color fringing detection unit configured to store detected color fringing areas in the image;
- and
- a tone mapping unit configured to tone map the image to obtain a tone mapped image prior to correction of the stored detected color fringing areas,
- wherein the image processor is configured to store, display, or transmit an output image based on at least the tone mapped image.
4 more elements
A method comprising:
- accessing an image from an image sensor;
- performing, after detection of color fringing areas in the image and before correction of the image based on the color fringing areas, tone mapping on the image to obtain a tone mapped image;
- and
- storing, displaying, or transmitting an output image based on at least the tone mapped image.
1 more element
Dependencies are inferred from the claim text.