Method and apparatus for implementing a digital graduated filter for an imaging apparatus
First Claim
1. A method for use in an imaging device for capturing an image of a high-dynamic range subject, the method including:
- displaying a preview of the subject to be captured in a display of the device;
capturing multiple images of the subject by the device, each image comprising parts of highlights and parts of shadows;
determining a light intensity dynamic range for parts of the subject;
determining number of images to be combined to form parts of a final image based, at least in part, on the dynamic range of the parts of the subject;
combining the multiple images to form a final image, wherein the combining includes the determined number of images to be combined to form different parts of the final image;
displaying the final image in the display of the device; and
storing the final image.
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Accused Products
Abstract
A digital graduated filter is implemented in an imaging device by combining multiple images of the subject wherein the combining may include combining different numbers of images for highlights and for shadows of the subject. The imaging device may present a user with a set of pre-defined graduated filter configurations to choose from. A user may also specify the direction of graduation and strength of graduation in a viewfinder. In an alternative implementation, combining may include scaling of pixels being added instead of varying the number of images being combined. In an alternative implementation, the combining of multiple images may include combining a different number of images for highlights of the subject than for shadows of subject.
130 Citations
20 Claims
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1. A method for use in an imaging device for capturing an image of a high-dynamic range subject, the method including:
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displaying a preview of the subject to be captured in a display of the device; capturing multiple images of the subject by the device, each image comprising parts of highlights and parts of shadows; determining a light intensity dynamic range for parts of the subject; determining number of images to be combined to form parts of a final image based, at least in part, on the dynamic range of the parts of the subject; combining the multiple images to form a final image, wherein the combining includes the determined number of images to be combined to form different parts of the final image; displaying the final image in the display of the device; and storing the final image. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An imaging device for capturing an image of a high-dynamic range subject, the device including:
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a display configured to display a preview of the subject to be captured; a lens and an image sensor configured to capture multiple images of the subject, wherein each image comprises parts of highlights and parts of shadows; a processor configured to; determine a light intensity dynamic range for parts of the subject; determine number of images to be combined to form parts of a final image based, at least in part, on the dynamic range of the parts of the subject; and combine the multiple images to form a final image, wherein the combining includes combining the determined number of the images to form different parts of the final image; the display further configured to display the final image; and a memory configured to store the final image. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A method for use in an imaging device for capturing an image of a high-dynamic range subject, the method including:
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displaying a preview of the subject to be captured in a display of the device; capturing multiple images of the subject in an imaging device; determining a light intensity dynamic range for parts of the subject; calculating scaling factors for parts of the subject based, at least in part, on the dynamic range of the parts of the subject; combining the multiple images to form a final image, wherein the combining includes processing pixel values with the scaling factors calculated; displaying the final image in the display of the device; and storing the final image. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification