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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/ */
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9 /* ullrich.koethe@iwr.uni-heidelberg.de or */
10 /* vigra@informatik.uni-hamburg.de */
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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
49 namespace vigra {
50
51 namespace detail {
52
53 // computes the normalization for SH base functions
54 inline 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
60 template<int N, class T, class C>
61 TinyVector<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
utilities.hxx
vigra::sqrt
SquareRootTraits< FixedPoint< IntBits, FracBits > >::SquareRootResult sqrt(FixedPoint< IntBits, FracBits > v)
square root.
Definition: fixedpoint.hxx:616

© Ullrich Köthe (ullrich.koethe@iwr.uni-heidelberg.de) Heidelberg Collaboratory for Image Processing, University of Heidelberg, Germany | html generated using doxygen and Python vigra 1.11.0 (Fri May 19 2017)