#include <IThomasHeat4thOp.hpp>
Inheritance diagram for IThomasHeat4thOp:
Purpose: Fast Computation of gaussian blurring. Very useful for linear time scale space, Retinex, and linear time image blurrings. Much faster than FFT on large kernels: sigma >>> 0 Semi-Implicit solver using LOD multiplicative splitting (I - tau * A) * uNew= uOld 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 | |
IThomasHeat4thOp (int iterations=1, double t=0.5, bool colorFlag=false) | |
Can be used as alternative of IIR for large sigma blurring when t=(sigma*sigma)/2. | |
virtual | ~IThomasHeat4thOp () |
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 | iter |
double | tau |