Reducing noise in digital images

Details Reducing noise in digital images Reducing noise in digital images

G - Physics

06

T

G06T 5/00 (2006.01) H04N 5/217 (2006.01)

Patent

CA 2660337

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.

Selon l'invention, une image numérique cible est reçue d'un capteur d'images. L'image est contaminée par un bruit d'une amplitude inconnue, qui est représenté par une image numérique de référence. Le processus appliqué utilise une analyse statistique de l'image numérique cible et de l'image numérique de référence pour estimer une amplitude du bruit pour au moins certains pixels de l'image numérique cible.

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