#include <IThomasHeatOp.hpp>
Inheritance diagram for IThomasHeatOp:
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 | |
| IThomasHeatOp (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 | ~IThomasHeatOp () |
| 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 |
 |
