1 // Copyright (c) 2007, 2008 libmv authors.
2 //
3 // Permission is hereby granted, free of charge, to any person obtaining a copy
4 // of this software and associated documentation files (the "Software"), to
5 // deal in the Software without restriction, including without limitation the
6 // rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
7 // sell copies of the Software, and to permit persons to whom the Software is
8 // furnished to do so, subject to the following conditions:
9 //
10 // The above copyright notice and this permission notice shall be included in
11 // all copies or substantial portions of the Software.
12 //
13 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
14 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
15 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
16 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
17 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
18 // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
19 // IN THE SOFTWARE.
20 
21 #ifndef LIBMV_CORRESPONDENCE_FEATURE_H_
22 #define LIBMV_CORRESPONDENCE_FEATURE_H_
23 
24 #include <opencv2/core.hpp>
25 
26 #include "libmv/numeric/numeric.h"
27 
28 namespace libmv
29 {
30   class Feature
31   {
32   public:
33     virtual
~Feature()34     ~Feature() {};
35   };
36 
37 class PointFeature : public Feature {
38  public:
39   PointFeature(float xx=0.0f, float yy=0.0f) {
40     coords[0] = xx;
41     coords[1] = yy;
42     scale = 0.0;
43     orientation = 0.0;
44   }
45 
46   PointFeature &operator=(const PointFeature &other)
47   {
48     if (this == &other)
49       return *this;
50     scale = other.scale;
51     orientation = other.orientation;
52     coords = other.coords;
53     return *this;
54   }
55 
PointFeature(const cv::KeyPoint & keypoint)56   PointFeature(const cv::KeyPoint & keypoint) {
57     coords[0] = keypoint.pt.x;
58     coords[1] = keypoint.pt.y;
59     scale = keypoint.octave;
60     orientation = keypoint.angle;
61   }
x()62   float x() const { return coords(0); }
y()63   float y() const { return coords(1); }
64 
65   Vec2f coords;       // (x, y), i.e. (column, row).
66   float scale;        // In pixels.
67   float orientation;  // In radians.
68 };
69 
70 }  // namespace libmv
71 
72 #endif  // LIBMV_CORRESPONDENCE_FEATURE_H_
73