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GammaMAPFunctor< VALUETYPE > Class Template Reference

This function tries to reduce the speckle noise of an image by applying the Gamma Maximum A Posteriori (MAP) filter. More...

#include <vigra/specklefilters.hxx>

Detailed Description

template<typename VALUETYPE>
class vigra::GammaMAPFunctor< VALUETYPE >

This function tries to reduce the speckle noise of an image by applying the Gamma Maximum A Posteriori (MAP) filter.

This function tries to reduce the speckle noise of an image by means of applying the Gamma Maximum A Posteriori (MAP) filter using a window of given size, and the equivalent numbers of look (enl). The implementation is according to the article by Lopez & Touzi & Nezry (1990): Adaptive speckle filters and scene heterogenity.

The user has to provide a window size and the equivalent numbers of look (enl). The implementation is according to the article by
Lopez & Touzi & Nezry (1990): Adaptive speckle filters and scene heterogenity.

All restrictions of the called functions applyWindowFunction apply.

Preconditions:

enl > 0
Class for a single RGB value.
Definition rgbvalue.hxx:128

Declarations:

pass 2D array views:

namespace vigra {
template <class T1, class S1,
class T2, class S2>
void
gammaMAPFilter(MultiArrayView<2, T1, S1> const & src,
BorderTreatmentMode border = BORDER_TREATMENT_REPEAT);
}
Two dimensional difference vector.
Definition diff2d.hxx:186

show deprecated declarations

Usage:

#include <vigra/specklefilters.hxx>
Namespace: vigra

unsigned int w=1000, h=1000;
...
// apply a Gamma MAP filter with a window size of 5x5, where
// the image was composed by 3 equivalent looks:
gammaMAPFilter(src, dest, Diff2D(5,5), 3);

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

© Ullrich Köthe (ullrich.koethe@iwr.uni-heidelberg.de)
Heidelberg Collaboratory for Image Processing, University of Heidelberg, Germany

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vigra 1.12.1