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invariant_features3D.hxx
1/************************************************************************/
2/* */
3/* Copyright 2009-2010 by Ullrich Koethe and Janis Fehr */
4/* */
5/* This file is part of the VIGRA computer vision library. */
6/* The VIGRA Website is */
7/* http://hci.iwr.uni-heidelberg.de/vigra/ */
8/* Please direct questions, bug reports, and contributions to */
9/* ullrich.koethe@iwr.uni-heidelberg.de or */
10/* vigra@informatik.uni-hamburg.de */
11/* */
12/* Permission is hereby granted, free of charge, to any person */
13/* obtaining a copy of this software and associated documentation */
14/* files (the "Software"), to deal in the Software without */
15/* restriction, including without limitation the rights to use, */
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17/* sell copies of the Software, and to permit persons to whom the */
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20/* */
21/* The above copyright notice and this permission notice shall be */
22/* included in all copies or substantial portions of the */
23/* Software. */
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33/* */
34/************************************************************************/
35
36#ifndef VIGRA_INVARIANT_FEATURES3D_HXX
37#define VIGRA_INVARIANT_FEATURES3D_HXX
38
39#include <complex>
40#include "config.hxx"
41#include "error.hxx"
42#include "utilities.hxx"
43#include "mathutil.hxx"
44#include "array_vector.hxx"
45#include "matrix.hxx"
46#include "tinyvector.hxx"
47#include "quaternion.hxx"
48
49namespace vigra {
50
51namespace detail {
52
53// computes the normalization for SH base functions
54inline double realSH(double l, double m)
55{
56 return std::sqrt((2.0*l + 1.0) / (4.0*M_PI*facLM(l,m)));
57
58}
59
60template<int N, class T, class C>
61TinyVector<float, N> centerOfBB(MultiArrayView<N, T, C> const & A)
62{
63 return TinyVector<float, N>(A.shape()) /= 2.0;
64}
65
66} // namespace detail
67
68
69} // namespace vigra
70
71#endif // VIGRA_INVARIANT_FEATURES3D_HXX

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

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