Image processing with a cellular nonlinear network

Saverio Morfu (1)

1 Le2i - Laboratoire Electronique, Informatique et Image [UMR6306]

A cellular nonlinear network (CNN) based on uncoupled nonlinear oscillators is proposed for image processing purposes. It is shown theoretically and numerically that the contrast of an image loaded at the nodes of the CNN is strongly enhanced, even if this one is initially weak. An image inversion can be also obtained without reconfiguration of the network whereas a gray levels extraction can be performed with an additional threshold filtering. Lastly, an electronic implementation of this CNN is presented.

Mots clés: nonlinear dynamics; nonlinear image processing; Cellular Nonlinear networks

Domaines: Traitement du signal et de l'image [eess.SP]; Traitement du signal et de l'image [eess.SP]; Systèmes désordonnés et réseaux de neurones [cond-mat.dis-nn]; Formation de Structures et Solitons [nlin.PS]; Electronique

Saverio Morfu. Image processing with a cellular nonlinear network. Physics Letters A, 2005, 343 (4), pp.281-292. ⟨10.1016/j.physleta.2005.01.099⟩. ⟨hal-00651511⟩