Method for sharpening a digital image with signal to noise estimation
First Claim
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1. A method of sharpening a digital image having image pixels according to its noise content, comprising the steps of:
- a) providing an image sharpener having a variable parameter of sharpening;
b) generating a noisy pixel belief map corresponding spatially to the image pixels having belief values indicating the likelihood that the modulation about respective pixels are due to system noise; and
c) using the noisy pixel belief map to vary the parameter of the image sharpener.
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Abstract
A method of sharpening a digital image having image pixels according to its noise content, includes the steps of providing an image sharpener having a variable parameter of sharpening; generating a noisy pixel belief map corresponding spatially to the image pixels having belief values indicating the likelihood that the modulation about respective pixels are due to system noise; and using the noisy pixel belief map to vary the parameter of the image sharpener.
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7 Claims
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1. A method of sharpening a digital image having image pixels according to its noise content, comprising the steps of:
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a) providing an image sharpener having a variable parameter of sharpening;
b) generating a noisy pixel belief map corresponding spatially to the image pixels having belief values indicating the likelihood that the modulation about respective pixels are due to system noise; and
c) using the noisy pixel belief map to vary the parameter of the image sharpener. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification