Image generation using non-linear scaling and tone-mapping based on cubic spline curves
AssigneeSamsung Electronics Co., Ltd.
InventorsKaimo Lin, Hamid R. Sheikh
Life of this patent
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Abstract
A method includes obtaining a Bayer input image. The method also includes generating, using at least one processing device of an electronic device, multiple YUV image frames based on the Bayer input image using non-linear scaling, where the YUV image frames are associated with different exposure settings. The method further includes generating, using the at least one processing device of the electronic device, a fused image based on the YUV image frames. In addition, the method includes applying, using the at least one processing device of the electronic device, global tone-mapping to the fused image in order to generate a tone-mapped fused image, where the global tone-mapping is based on a first cubic spline curve.
Claims20
A method comprising:
- obtaining a Bayer input image;
- generating, using at least one processing device of an electronic device, multiple YUV image frames based on the Bayer input image using non-linear scaling, the YUV image frames associated with different exposure settings;
- generating, using the at least one processing device of the electronic device, a fused image based on the YUV image frames;
- and
- applying, using the at least one processing device of the electronic device, global tone-mapping to the fused image in order to generate a tone-mapped fused image, wherein the global tone-mapping is based on a first cubic spline curve.
An apparatus comprising:
- at least one processing device configured to:
- obtain a Bayer input image;
- generate multiple YUV image frames based on the Bayer input image using non-linear scaling, the YUV image frames associated with different exposure settings;
- generate a fused image based on the YUV image frames;
- and
- apply global tone-mapping to the fused image in order to generate a tone-mapped fused image, wherein the global tone-mapping is based on a first cubic spline curve.
A non-transitory computer readable medium containing instructions that when executed cause at least one processor of an electronic device to:
- obtain a Bayer input image;
- generate multiple YUV image frames based on the Bayer input image using non-linear scaling, the YUV image frames associated with different exposure settings;
- generate a fused image based on the YUV image frames;
- and
- apply global tone-mapping to the fused image in order to generate a tone-mapped fused image, wherein the global tone-mapping is based on a first cubic spline curve.
Dependencies are inferred from the claim text.