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IAosLysaker4thOp Class Reference

#include <IAosLysaker4thOp.hpp>

Inheritance diagram for IAosLysaker4thOp:

[legend]Collaboration diagram for IAosLysaker4thOp:

[legend]List of all members.

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Detailed Description

Lysaker 4th order recursive flow.

Author:

Bernard De Cuyper

Version:

0.052

Date:

8/09/2002

 
Purpose:        Fast Computation of Lysaker 4th order recursive flow.
                        Thomas LU model.
                        Semi-Implicit solver using LOD multiplicative splitting

            (I - tau * A) * uNew=  uOld

                Second order filter like the Rudin/Osher/Fatemi filter are very
            good denoiser. But is some application, to much details are destroyed.
                        Also, second order filters introduce a staircase effect in images.
                        (like linear steps). Higher order filters can better maintain 
                        non-linear information and details, this happens at the cost of
                        maintaining some noise. This is a tradeoff, your choice, or perhaps
                        we may need a kind of "linearity" indicator to decide what type of local restoration
                        should be used.

Papers: "Recursivity and PDE's in image processing", 
                        L. Alvarez, R. Deriche and F Santana, Spain 1998.

                "Noise Removal using Fourth-Order Partial Differential Equations 
                with Applications to Medical Magnetic Resonance Images in Space and time.", 
                        Marius Lysaker & Arvid Lundervold , Report 2002, UCLA.

Purpose:        
                

@ Copyrights: Bernard De Cuyper & Eddy Fraiha 2002, Eggs & Pictures. MIT/Open BSD copyright model.

Public Methods
	IAosLysaker4thOp (int atype=0, int iterations=1, double t=0.5, double K=1.0, double sigma=3.0, bool iirF=false, bool colorFlag=false, bool nonLinearF=true)
virtual	~IAosLysaker4thOp ()
virtual void	report (FILE *file)
Protected Methods
virtual AnImage *	greyFilter (AnImage *src, AnImage *dest=0)
virtual AnImage *	greySelectedFilter (AnImage *mask, AnImage *src, AnImage *dest=0)
virtual Real3CImage *	scolorFilter (Real3CImage *src, Real3CImage *dest=0)
virtual Real3CImage *	scolorSelectedFilter (AnImage *mask, Real3CImage *src, Real3CImage *dest=0)
virtual Real3CImage *	fcolorFilter (Real3CImage *src, Real3CImage *dest=0)
virtual Real3CImage *	fcolorSelectedFilter (AnImage *mask, Real3CImage *src, Real3CImage *dest=0)
Private Attributes
int	type
int	iter
double	tau
double	sigmaDelta
double	sigmaBlur
bool	iir
bool	nonLinear

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The documentation for this class was generated from the following files:

• IAosLysaker4thOp.hpp
• IAosLysaker4thOp.cpp

Restoreinpaint sourceforge project `C++/Java Image Processing, Restoration, Inpainting Project'.

Bernard De Cuyper: Open Project Leader: Concept, design and development. Bernard De Cuyper & Eddy Fraiha 2002, 2003. Bernard De Cuyper 2004. Open and free, for friendly usage only. Modifications on Belgium ground of this piece of artistic work, by governement institutions or companies, must be notified to Bernard De Cuyper.