Method and Device for Reducing the Fixed Pattern Noise of a Digital Image
First Claim
Patent Images
1. A method for reducing a digital image'"'"'s fixed pattern noise, comprising:
- determining the amount of FPN in a digital image taken by a digital imaging device as a function of at least one of relevant variables on an area-by-area basis or on a pixel-by-pixel basis; and
modifying the digital image by the determined amount of FPN on an area-by-area basis or on a pixel-by-pixel basis.
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Abstract
A method or a device that reduces fixed pattern noise in an image captured by a digital image device and adjusts the reduction based on the level of FPN, preferably on an area-by-area basis or on a pixel-by-pixel basis.
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Citations
40 Claims
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1. A method for reducing a digital image'"'"'s fixed pattern noise, comprising:
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determining the amount of FPN in a digital image taken by a digital imaging device as a function of at least one of relevant variables on an area-by-area basis or on a pixel-by-pixel basis; and modifying the digital image by the determined amount of FPN on an area-by-area basis or on a pixel-by-pixel basis. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A device for reducing a digital image'"'"'s fixed pattern noise, comprising:
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an input for receiving a digital image from a digital imaging device; an output for sending a modified digital image to a display device; a processor that includes one or more circuits and/or software for processing the digital image, wherein the processor determines the amount of FPN in a digital image taken by a digital imaging device as a function of at least one of relevant variables on an area-by-area basis or on a pixel-by-pixel basis and modifies the digital image by the determined amount of FPN on an area-by-area basis or on a pixel-by-pixel basis. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
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39. A method for sharpening a digital image, comprising:
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determining the amount of sharpening needed to sharpen a digital image taken by a digital imaging device as a function of at least one of brightness level, operating temperature, and gain value of the image on an area-by-area basis or on a pixel-by-pixel basis; and sharpening the digital image by the determined amount of sharpening on an area-by-area basis or on a pixel-by-pixel basis.
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40. A device for sharpening a digital image, comprising:
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an input for receiving a digital image from a digital imaging device; an output for sending a sharpened digital image to a display device; a processor that includes one or more circuits and/or software for shapening the digital image, wherein the processor determines the amount of sharpening needed to sharpen the digital image as a function of at least one of brightness level, operating temperature, and gain value of the image on an area-by-area basis or on a pixel-by-pixel basis and sharpens the digital image by the determined amount of sharpening on an area-by-area basis or on a pixel-by-pixel basis.
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Specification