LowPassLpt.H File Reference

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Detailed Description

low-pass filtering and smoothing functions

Definition in file LowPassLpt.H.

#include "Util/Promotions.H"

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Enumerations
enum	BorderPolicy { SEPARATE_HEMI, CROSS_HEMI, CROSS_ANGLE }
Functions
template<class T>
Image< typename promote_trait< T, float >::TP >	lowPassLpt (const Image< T > &src, const uint taps=5, const BorderPolicy policy=CROSS_HEMI)
	Low-pass filter using a 3 or 5 tap binomial.
template<class T>
Image< typename promote_trait< T, float >::TP >	lowPassLpt3 (const Image< T > &src, const BorderPolicy policy=CROSS_HEMI)
	Low-pass filter, coeff * [0.25 0.5 0.25], applied separably in R.
template<class T>
Image< typename promote_trait< T, float >::TP >	lowPassLpt3r (const Image< T > &src)
template<class T>
Image< typename promote_trait< T, float >::TP >	lowPassLpt3w (const Image< T > &src)
template<class T>
Image< typename promote_trait< T, float >::TP >	lowPassLpt5 (const Image< T > &src, const BorderPolicy policy=CROSS_HEMI)
	Low-pass filter an lpt image, coeff * [1 4 6 4 1]/16, applied.
template<class T>
Image< typename promote_trait< T, float >::TP >	lowPassLpt5r (const Image< T > &src)
template<class T>
Image< typename promote_trait< T, float >::TP >	lowPassLpt5w (const Image< T > &src)

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Function Documentation

template<class T> Image<typename promote_trait<T, float>::TP> lowPassLpt (  const Image< T > &  src, const uint  taps = 5, const BorderPolicy  policy = CROSS_HEMI )

Low-pass filter using a 3 or 5 tap binomial. Definition at line 52 of file LowPassLpt.C. References lowPass3x(), lowPass3y(), lowPass5x(), lowPass5y(), lowPassLpt3r(), lowPassLpt3w(), lowPassLpt5r(), and lowPassLpt5w(). Referenced by WeightsRT::compute(), and WeightsDoGRT::compute().

template<class T> Image<typename promote_trait<T, float>::TP> lowPassLpt3 (  const Image< T > &  src, const BorderPolicy  policy = CROSS_HEMI )

Low-pass filter, coeff * [0.25 0.5 0.25], applied separably in R. Definition at line 76 of file LowPassLpt.C. References lowPass3x(), lowPass3y(), lowPassLpt3r(), and lowPassLpt3w().

template<class T> Image<typename promote_trait<T, float>::TP> lowPassLpt3r (  const Image< T > &  src  )

Low-pass filter an Lpt image, coeff * [0.25 0.5 0.25], applied in R. Here we don't allow the filter to cross hemidfilds along the R direction. Use LowPass3x in LowPass.H if you want hemifields to interact. Definition at line 89 of file LowPassLpt.C. References Image< T >::begin(), Image< T >::beginw(), Image< T >::getHeight(), Image< T >::getWidth(), GVX_TRACE, h, i, NO_INIT, source, and w. Referenced by lowPassLpt(), and lowPassLpt3().

template<class T> Image<typename promote_trait<T, float>::TP> lowPassLpt3w (  const Image< T > &  src  )

Low-pass filter an Lpt image, coeff * [0.25 0.5 0.25], applied in W. Here we allow the filter to cross to the other hemifield when filtering in the W direction so space connects at the vertical meridian. Use LowPass3y in LowPass.H if you dont want to cross the meridian. Definition at line 138 of file LowPassLpt.C. References Image< T >::begin(), Image< T >::beginw(), Image< T >::getHeight(), Image< T >::getWidth(), GVX_TRACE, h, i, NO_INIT, source, and w. Referenced by lowPassLpt(), and lowPassLpt3().

template<class T> Image<typename promote_trait<T, float>::TP> lowPassLpt5 (  const Image< T > &  src, const BorderPolicy  policy = CROSS_HEMI )

Low-pass filter an lpt image, coeff * [1 4 6 4 1]/16, applied. Definition at line 193 of file LowPassLpt.C. References lowPass5x(), lowPass5y(), lowPassLpt5r(), and lowPassLpt5w().

template<class T> Image<typename promote_trait<T, float>::TP> lowPassLpt5r (  const Image< T > &  src  )

Low-pass filter an Lpt image, coef * [1 4 6 4 1]/16 applied in R. Here we don't allow the filter to cross hemidfilds along the R direction. Use LowPass5x in LowPass.H if you want hemifield to interact. Definition at line 206 of file LowPassLpt.C. References Image< T >::begin(), Image< T >::beginw(), Image< T >::getHeight(), Image< T >::getWidth(), GVX_TRACE, h, i, NO_INIT, source, and w. Referenced by lowPassLpt(), and lowPassLpt5().

template<class T> Image<typename promote_trait<T, float>::TP> lowPassLpt5w (  const Image< T > &  src  )

Low-pass filter an Lpt image, coef * [1 4 6 4 1]/16 applied in W. Here we allow the filter to cross to the other hemifield when filtering in the W direction so space connects at the vertical meridian. Use LowPass5y in LowPass.H if you dont want to cross the meridian. Definition at line 273 of file LowPassLpt.C. References Image< T >::begin(), Image< T >::beginw(), Image< T >::end(), Image< T >::getHeight(), Image< T >::getWidth(), GVX_TRACE, h, i, NO_INIT, source, and w. Referenced by lowPassLpt(), and lowPassLpt5().

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