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2 * Software License Agreement (BSD License)
4 * Copyright 2008-2009 Marius Muja (mariusm@cs.ubc.ca). All rights reserved.
5 * Copyright 2008-2009 David G. Lowe (lowe@cs.ubc.ca). All rights reserved.
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30 #ifndef OPENCV_FLANN_SAMPLING_H_
31 #define OPENCV_FLANN_SAMPLING_H_
40 Matrix<T> random_sample(Matrix<T>& srcMatrix, long size, bool remove = false)
42 Matrix<T> newSet(new T[size * srcMatrix.cols], size,srcMatrix.cols);
45 for (long i=0; i<size; ++i) {
46 long r = rand_int((int)(srcMatrix.rows-i));
49 std::copy(src, src+srcMatrix.cols, dest);
51 src = srcMatrix[srcMatrix.rows-i-1];
53 std::copy(src, src+srcMatrix.cols, dest);
57 srcMatrix.rows -= size;
63 Matrix<T> random_sample(const Matrix<T>& srcMatrix, size_t size)
65 UniqueRandom rand((int)srcMatrix.rows);
66 Matrix<T> newSet(new T[size * srcMatrix.cols], size,srcMatrix.cols);
69 for (size_t i=0; i<size; ++i) {
73 std::copy(src, src+srcMatrix.cols, dest);
81 #endif /* OPENCV_FLANN_SAMPLING_H_ */