Estimation of frequency dependence and grey-level dependence of

Details Estimation of frequency dependence and grey-level dependence of Estimation of frequency dependence and grey-level dependence of

1997-12-23

2000-05-30

Lee, Thomas D.

Image analysis

Image enhancement or restoration

Artifact removal or suppression

382254, 358463, G06K 940

Patent

active

060699825

ABSTRACT:
Estimating spatial noise characteristics associated with an image acquired from an unknown digital image acquisition device is accomplished by a method, or system, which: provides predetermined default spatial noise characteristic information of the unknown digital image acquisition device; gathers user information related to the spatial noise characteristics of the unknown digital image acquisition device; gathers, from the acquired image, image data related to the spatial noise characteristics of the unknown digital image acquisition device; generates replacement data in response to the user information and the image data; and updates the predetermined default spatial noise characteristic information with the replacement data.

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