Reducing noise in digital images

Details Reducing noise in digital images Reducing noise in digital images

2006-08-07

2010-10-12

Bhatnagar, Anand (Department: 2624)

Image analysis

Image enhancement or restoration

Artifact removal or suppression

C382S128000, C382S254000, C382S260000, C382S278000, C348S241000, C348S243000

Reexamination Certificate

active

07813586

ABSTRACT:
A target digital image is received from an image sensor. The image is contaminated by noise of unknown magnitude that is represented by a reference digital image. A process is applied that uses statistical analysis of the target digital image and of the reference digital image to estimate a magnitude of the noise for at least some pixels of the target digital image.

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