Methods and Apparatuses For Image Processing
First Claim
1. A machine readable medium containing executable computer program instructions which when executed by a data processing system cause said system to perform a method to generate a first dynamic range image from a second dynamic range image, the method comprising:
- determining a mask showing one or more regions of the second dynamic range image containing pixels having values that are outside a first range and inside a second range;
computing a weight distribution from the mask; and
generating the first dynamic range image from the second dynamic range image using the weight distribution.
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Abstract
Methods and apparatuses for generating a low dynamic range image for a high dynamic range scene. In one aspect, a method to generate a low dynamic range image from a high dynamic range image, includes: determining one or more regions of the high dynamic range image containing pixels having values that are outside a first range and inside a second range; computing a weight distribution from the one or more regions; and generating the low dynamic range image from the high dynamic range image using the weight distribution. In another aspect, a method of image processing, includes: detecting one or more regions in a first image of a high dynamic range scene according to a threshold to generate a mask; and blending the first image and a second image of the scene to generate a third image using the mask.
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Citations
20 Claims
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1. A machine readable medium containing executable computer program instructions which when executed by a data processing system cause said system to perform a method to generate a first dynamic range image from a second dynamic range image, the method comprising:
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determining a mask showing one or more regions of the second dynamic range image containing pixels having values that are outside a first range and inside a second range; computing a weight distribution from the mask; and generating the first dynamic range image from the second dynamic range image using the weight distribution. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A machine readable medium containing executable computer program instructions which when executed by a data processing system cause said system to perform a method of image processing, the method comprising:
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detecting one or more regions in a first image of a high dynamic range scene according to a threshold; and blending the first image and a second image of the scene to generate a third image according to the one or more regions. - View Dependent Claims (9, 10, 11)
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12. A method to generate a first dynamic range image from a second dynamic range image, the method comprising:
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determining data representing one or more regions of the second dynamic range image containing pixels having values that are outside a first range and inside a second range; computing a weight distribution from the data representing the one or more regions; and generating the first dynamic range image from the second dynamic range image using the weight distribution. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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19. A method of image processing, the method comprising:
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detecting one or more regions in a first image of a high dynamic range scene according to a threshold to generate a mask; and blending the first image and a second image of the scene to generate a third image using the mask. - View Dependent Claims (20)
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Specification