#include <RRecursive4dIIROp.hpp>
Inheritance diagram for RRecursive4dIIROp:

 
Purpose:        Fast Computation of gaussian blurring.
                        Fourth order filter.
Papers:         "Recursive Digital Filters,",
                        Victor De Brunner , John Wiley Encyclopedia of Electrical and Electronic Engineer 1999,
                        Volume 18.
                        "Programming techniques for realtime software implementation, of optimal edge detectors:
                        a comparision between state of the art DSP's and RISC architectures."
                        Frantz Lohier, Lionel Lacassagne, Patrick Garda, Université Pierre et Marie Curie, France 199x.
                        "Evaluation of Diffusion Schemes for Multiscale-Watershed Segmentation,",
                        Erik Dam, Thesis , University of Copenhagen 2000.
                        "Recursively Implementing Gaussian and its Derivatives.", 
                        R. Deriche, INRIA 1993.
                        "Recursivity and PDE's in image processing", 
                        L. Alvarez, R. Deriche and F Santana, Spain 1998.
                @ Copyrights: Bernard De Cuyper & Eddy Fraiha 2002, Eggs & Pictures. MIT/Open BSD copyright model.
Public Methods | |
| RRecursive4dIIROp (double asigma=1.0) | |
| virtual | ~RRecursive4dIIROp () | 
| virtual RImage * | filter (RImage *src, RImage *dest=0) | 
| virtual RImage * | selectedFilter (AnImage *mask, RImage *src, RImage *dest=0) | 
| virtual void | report (FILE *file) | 
Protected Methods | |
| virtual void | computeNormalisation (int direction) | 
| virtual void | computeCausalFilter (int direction) | 
| virtual void | computeNonCausalFilter (int direction) | 
Protected Attributes | |
| bool | symmetric [2] | 
| double | sigma | 
| double | scale | 
| double | a0 [2] | 
| double | a1 [2] | 
| double | b0 [2] | 
| double | w0 [2] | 
| double | c0 [2] | 
| double | c1 [2] | 
| double | b1 [2] | 
| double | w1 [2] | 
| double | n0p [2] | 
| double | n1p [2] | 
| double | n2p [2] | 
| double | n3p [2] | 
| double | d1p [2] | 
| double | d2p [2] | 
| double | d3p [2] | 
| double | d4p [2] | 
| double | n1m [2] | 
| double | n2m [2] | 
| double | n3m [2] | 
| double | n4m [2] | 
| double | d1m [2] | 
| double | d2m [2] | 
| double | d3m [2] | 
| double | d4m [2] | 
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