An impulse noise removal algorithm by detection technology and fourth-order PDE
LI Cai-kang · Journal of Minjiang University · 2009
According to the characteristics of the impulse noise,proposes a new algorithm called MSDLC Algorithm,which combined with detective tenology and fourth-order Partial Different Equation(PDE).The new algorithm takes the measure of firstly then restoration.In the detection phase,MSDLC algorithm takes advantage of statistic idea to locate the pixels which are polluted by the impulse noise.In the restoration phase,MSDLC algorithm makes use of LC fourth-order PDE to remove the noises,and the chosen LC fourth-order PDE uses appropriate coefficient function according to the property of LC fourth-order PDE.The experiments show that MSDLC algorithm can achieve a good trade-off between noise removal and edge preservation.