1 /* This is FAST corner detector, contributed to OpenCV by the author, Edward Rosten.
2    Below is the original copyright and the references */
3 
4 /*
5 Copyright (c) 2006, 2008 Edward Rosten
6 All rights reserved.
7 
8 Redistribution and use in source and binary forms, with or without
9 modification, are permitted provided that the following conditions
10 are met:
11 
12     *Redistributions of source code must retain the above copyright
13      notice, this list of conditions and the following disclaimer.
14 
15     *Redistributions in binary form must reproduce the above copyright
16      notice, this list of conditions and the following disclaimer in the
17      documentation and/or other materials provided with the distribution.
18 
19     *Neither the name of the University of Cambridge nor the names of
20      its contributors may be used to endorse or promote products derived
21      from this software without specific prior written permission.
22 
23 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
24 "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
25 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
26 A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
27 CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
28 EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
29 PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
30 PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
31 LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
32 NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
33 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
34 */
35 
36 /*
37 The references are:
38  * Machine learning for high-speed corner detection,
39    E. Rosten and T. Drummond, ECCV 2006
40  * Faster and better: A machine learning approach to corner detection
41    E. Rosten, R. Porter and T. Drummond, PAMI, 2009
42 */
43 
44 #ifndef __OPENCV_FEATURES_2D_FAST_HPP__
45 #define __OPENCV_FEATURES_2D_FAST_HPP__
46 
47 #ifdef __cplusplus
48 
49 #include "precomp.hpp"
50 
51 namespace cv
52 {
53 
54 void makeOffsets(int pixel[25], int row_stride, int patternSize);
55 
56 template<int patternSize>
57 int cornerScore(const uchar* ptr, const int pixel[], int threshold);
58 
59 }
60 
61 #endif
62 #endif
63