WHITE BALANCE OPTIMIZATION WITH HIGH DYNAMIC RANGE IMAGES
First Claim
Patent Images
1. A method of generating a high dynamic range digital image, comprising:
- capturing a first image of a scene from a at least one sensor, wherein the scene has a bright region and a dark region, and wherein the first image is captured using a first exposure setting based on the bright region and wherein the white balance of the first image is determined by the bright region;
capturing a second image of the scene from the at least one sensor, wherein the second image is captured using a second exposure setting based on the dark region, and wherein the white balance of the second image is determined by the dark region; and
generating a high dynamic range digital image by combining the first image and the second image.
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Abstract
Systems and methods to improve the white balance of a high dynamic range image are disclosed. In a particular embodiment, an imaging device includes a camera sensor and a processor, the processor configured to capture a lighter image and a darker image of a scene. The processor is then configured to white balance the lighter image based on the lighter regions of the image, and to white balance the darker image based on the darker regions of the image. The two images can then be combined to produce a final image.
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Citations
20 Claims
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1. A method of generating a high dynamic range digital image, comprising:
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capturing a first image of a scene from a at least one sensor, wherein the scene has a bright region and a dark region, and wherein the first image is captured using a first exposure setting based on the bright region and wherein the white balance of the first image is determined by the bright region; capturing a second image of the scene from the at least one sensor, wherein the second image is captured using a second exposure setting based on the dark region, and wherein the white balance of the second image is determined by the dark region; and generating a high dynamic range digital image by combining the first image and the second image. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An imaging device, comprising:
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a camera sensor; a processor, configured to; capture a first image of a scene from a at least one sensor, wherein the first image has a bright region and a dark region, and wherein the first image is captured using a first exposure setting based on the bright region and wherein the white balance of the first image is determined by the bright region, capture a second image of the scene from the at least one camera sensor, wherein the second image is captured using a second exposure setting based on the dark region and wherein the white balance of the second image is determined by the dark region, and combine the first image and second image to produce a final image; and a storage for storing the final image. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A non-transitory computer-readable medium containing processor executable first instructions that are operative to cause a processor to
capture a first image of a scene from a at least one sensor, wherein the first image has a bright region and a dark region, and wherein the first image is captured using a first exposure setting based on the bright region and wherein the white balance of the first image is determined by the bright region, and capture a second image of the scene from the at least one sensor, wherein the second image is captured using a second exposure setting based on the dark region and wherein the white balance of the second image is determined by the dark region, and combine the first image and second image to produce a final image.
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20. An imaging apparatus comprising:
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means for capturing a first image of a scene from a at least one sensor, wherein the first image has a bright region and a dark region, and wherein the first image is captured using a first exposure setting based on the bright region and wherein the white balance of the first image is determined, at least in part, by the bright region; means for capturing a second image of the scene from the at least one sensor, wherein the second image is captured using a second exposure setting based on the dark region, and wherein the white balance of the second image is determined, at least in part, by the dark region; and means for generating a high dynamic range digital image by combining the first image and second image.
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Specification