/usr/include/vigra/invariant_features3D.hxx is in libvigraimpex-dev 1.10.0+git20160211.167be93+dfsg-2+b5.
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/* */
/* Copyright 2009-2010 by Ullrich Koethe and Janis Fehr */
/* */
/* This file is part of the VIGRA computer vision library. */
/* The VIGRA Website is */
/* http://hci.iwr.uni-heidelberg.de/vigra/ */
/* Please direct questions, bug reports, and contributions to */
/* ullrich.koethe@iwr.uni-heidelberg.de or */
/* vigra@informatik.uni-hamburg.de */
/* */
/* Permission is hereby granted, free of charge, to any person */
/* obtaining a copy of this software and associated documentation */
/* files (the "Software"), to deal in the Software without */
/* restriction, including without limitation the rights to use, */
/* copy, modify, merge, publish, distribute, sublicense, and/or */
/* sell copies of the Software, and to permit persons to whom the */
/* Software is furnished to do so, subject to the following */
/* conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the */
/* Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES */
/* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND */
/* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT */
/* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, */
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/* */
/************************************************************************/
#ifndef VIGRA_INVARIANT_FEATURES3D_HXX
#define VIGRA_INVARIANT_FEATURES3D_HXX
#include <complex>
#include "config.hxx"
#include "error.hxx"
#include "utilities.hxx"
#include "mathutil.hxx"
#include "array_vector.hxx"
#include "matrix.hxx"
#include "tinyvector.hxx"
#include "quaternion.hxx"
namespace vigra {
namespace detail {
// computes the normalization for SH base functions
inline double realSH(double l, double m)
{
return std::sqrt((2.0*l + 1.0) / (4.0*M_PI*facLM(l,m)));
}
template<int N, class T, class C>
TinyVector<float, N> centerOfBB(MultiArrayView<N, T, C> const & A)
{
return TinyVector<float, N>(A.shape()) /= 2.0;
}
} // namespace detail
} // namespace vigra
#endif // VIGRA_INVARIANT_FEATURES3D_HXX
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