Imager system with median filter and method thereof
First Claim
1. An imaging system configured to display a captured image on a display having a lower dynamic range than the imaging system, the imaging system comprising:
- a high dynamic range imager configured to capture at least one high dynamic range image; and
a processing device communicatively connected to said high dynamic range imager, wherein said processing device is configured to rank each element of an array with respect to an ordering criterion and select a median element, where the median element is a function of a ratio of a non-reference color component of a pixel to a reference color component of the pixel, wherein said ordering criterion comprises a discrete ranking value assigned to every element.
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Abstract
An imaging system configured to display a captured image on a display having a lower dynamic range than the imaging system is provided, wherein the imaging system includes a high dynamic range imager configured to capture at least one high dynamic range image, and a processing device communicatively connected to the high dynamic range imager, wherein the processing device is configured to reduce color speckles caused by errant interpolated pixel values and reduce occurrence of errant values of alternate color while maintaining at least one of sharpness detail, edge detail, and generate smoothing color rendering in a displayed image.
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Citations
20 Claims
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1. An imaging system configured to display a captured image on a display having a lower dynamic range than the imaging system, the imaging system comprising:
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a high dynamic range imager configured to capture at least one high dynamic range image; and a processing device communicatively connected to said high dynamic range imager, wherein said processing device is configured to rank each element of an array with respect to an ordering criterion and select a median element, where the median element is a function of a ratio of a non-reference color component of a pixel to a reference color component of the pixel, wherein said ordering criterion comprises a discrete ranking value assigned to every element. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An imaging system configured to display a captured image on a display having a lower dynamic range than the imaging system, the imaging system comprising:
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a high dynamic range imager configured to capture at least one high dynamic range image; and a processing device communicatively connected to said high dynamic range imager, wherein said processing device is configured such that elements with equal values are sorted in a prescribed sequence so each element has a rank that is unique within a set, wherein a middle element is always specified. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. An imaging system configured to display a captured image on a display having a lower dynamic range than the imaging system, the imaging system comprising:
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a high dynamic range imager configured to capture at least one high dynamic range image; and a processing device communicatively connected to said high dynamic range imager, wherein said processing device is configured to use a second derivative term calculated from one of a red pixel and a blue pixel for interpolation of a green pixel. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification