[ VIGRA Homepage | Function Index | Class Index | Namespaces | File List | Main Page ]

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, */
16 /* copy, modify, merge, publish, distribute, sublicense, and/or */
17 /* sell copies of the Software, and to permit persons to whom the */
18 /* Software is furnished to do so, subject to the following */
19 /* conditions: */
20 /* */
21 /* The above copyright notice and this permission notice shall be */
22 /* included in all copies or substantial portions of the */
23 /* Software. */
24 /* */
25 /* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND */
26 /* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES */
27 /* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND */
28 /* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT */
29 /* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, */
30 /* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING */
31 /* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR */
32 /* OTHER DEALINGS IN THE SOFTWARE. */
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
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
vigra
Definition: accessor.hxx:43
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 1.10.0