Image analysis – Image enhancement or restoration – Image filter
Reexamination Certificate
2004-04-29
2009-08-04
Werner, Brian P (Department: 2624)
Image analysis
Image enhancement or restoration
Image filter
C382S263000, C382S264000, C382S275000, C348S607000
Reexamination Certificate
active
07570831
ABSTRACT:
A method for estimating image noise. Image data for at least one column of pixels and at least one row of pixels of the image is sampled. At least one filter is applied on sampled image data resulting in at least one sequence of filtered values. A feature set of pixels of the image is selected. Image noise estimation is determined based on at least one of the filtered values of the feature set of pixels.
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Nachlieli Hila
Shaked Doron
Hewlett--Packard Development Company, L.P.
Torres José M
Werner Brian P
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