A Simple Trick to Speed Up and Improve the Non-Local Means

Laurent Condat (1)

1 Equipe Image - Laboratoire GREYC - UMR6072

We show that the popular Non-Local Means method for image denoising can be implemented exactly, easily and with lower computation time using convolutions. Also, our algorithm allows the use of infinite-size non-binary patches, which improves the denoising quality.

Mots clés: denoising; Non-Local Means; patches

Domaines: Traitement du signal et de l'image [eess.SP]; Traitement du signal et de l'image [eess.SP]

Laurent Condat. A Simple Trick to Speed Up and Improve the Non-Local Means. 2010. ⟨hal-00512801v3⟩