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US 2022/0021852 A1Published application
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:
- 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.
3 more elements
A system, comprising:
- an image sensor configured to detect an image;
- and
- an image processor configured to receive the image and comprised of:
- a color fringing detection unit configured to detect color fringing areas in the image;
- a color fringing correction unit configured to correct detected color fringing areas to obtain an intermediary image;
- and
- a tone mapping unit configured to tone map the image to obtain a tone mapped image,
- wherein the color fringing detection unit is configured to operate prior to the tone mapping unit, and
- wherein the image processor is configured to store, display, or transmit an output image based on at least the tone mapped image.
6 more elements
A method comprising:
- receiving an image from an image sensor;
- detecting, in a linear space, color fringing areas in the image:
- correcting detected color fringing areas to obtain a corrected image;
- performing, in a non-linear space, tone mapping on a defined image to obtain a tone mapped image;
- and
- storing, displaying, or transmitting an output image based on at least the tone mapped image.
3 more elements
Dependencies are inferred from the claim text.