version:2.1.5
bugfixes: update:拨号使用ocr进行识别
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@@ -39,32 +39,35 @@
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#include "general.h"
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namespace cvflann {
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namespace cvflann
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{
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inline int rand() {
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inline int rand()
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{
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#ifndef OPENCV_FLANN_USE_STD_RAND
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# if INT_MAX == RAND_MAX
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int v = cv::theRNG().next() & INT_MAX;
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int v = cv::theRNG().next() & INT_MAX;
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# else
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int v = cv::theRNG().uniform(0, RAND_MAX + 1);
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int v = cv::theRNG().uniform(0, RAND_MAX + 1);
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# endif
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#else
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int v = std::rand();
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int v = std::rand();
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#endif // OPENCV_FLANN_USE_STD_RAND
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return v;
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}
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return v;
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}
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/**
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* Seeds the random number generator
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* @param seed Random seed
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*/
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inline void seed_random(unsigned int seed) {
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inline void seed_random(unsigned int seed)
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{
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#ifndef OPENCV_FLANN_USE_STD_RAND
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cv::theRNG() = cv::RNG(seed);
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cv::theRNG() = cv::RNG(seed);
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#else
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std::srand(seed);
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std::srand(seed);
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#endif
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}
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}
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/*
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* Generates a random double value.
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@@ -75,9 +78,10 @@ namespace cvflann {
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* @param low Lower limit
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* @return Random double value
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*/
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inline double rand_double(double high = 1.0, double low = 0) {
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return low + ((high - low) * (rand() / (RAND_MAX + 1.0)));
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}
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inline double rand_double(double high = 1.0, double low = 0)
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{
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return low + ((high-low) * (rand() / (RAND_MAX + 1.0)));
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}
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/**
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* Generates a random integer value.
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@@ -85,62 +89,68 @@ namespace cvflann {
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* @param low Lower limit
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* @return Random integer value
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*/
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inline int rand_int(int high = RAND_MAX, int low = 0) {
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return low + (int) (double(high - low) * (rand() / (RAND_MAX + 1.0)));
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}
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inline int rand_int(int high = RAND_MAX, int low = 0)
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{
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return low + (int) ( double(high-low) * (rand() / (RAND_MAX + 1.0)));
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}
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/**
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* Random number generator that returns a distinct number from
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* the [0,n) interval each time.
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*/
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class UniqueRandom {
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std::vector<int> vals_;
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int size_;
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int counter_;
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class UniqueRandom
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{
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std::vector<int> vals_;
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int size_;
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int counter_;
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public:
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/**
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* Constructor.
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* @param n Size of the interval from which to generate
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* @return
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*/
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UniqueRandom(int n) {
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init(n);
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}
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public:
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/**
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* Constructor.
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* @param n Size of the interval from which to generate
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* @return
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*/
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UniqueRandom(int n)
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{
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init(n);
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}
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/**
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* Initializes the number generator.
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* @param n the size of the interval from which to generate random numbers.
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*/
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void init(int n) {
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// create and initialize an array of size n
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vals_.resize(n);
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size_ = n;
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for (int i = 0; i < size_; ++i) vals_[i] = i;
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/**
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* Initializes the number generator.
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* @param n the size of the interval from which to generate random numbers.
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*/
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void init(int n)
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{
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// create and initialize an array of size n
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vals_.resize(n);
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size_ = n;
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for (int i = 0; i < size_; ++i) vals_[i] = i;
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// shuffle the elements in the array
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// shuffle the elements in the array
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#ifndef OPENCV_FLANN_USE_STD_RAND
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cv::randShuffle(vals_);
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cv::randShuffle(vals_);
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#else
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std::random_shuffle(vals_.begin(), vals_.end());
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std::random_shuffle(vals_.begin(), vals_.end());
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#endif
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counter_ = 0;
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}
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counter_ = 0;
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}
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/**
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* Return a distinct random integer in greater or equal to 0 and less
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* than 'n' on each call. It should be called maximum 'n' times.
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* Returns: a random integer
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*/
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int next() {
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if (counter_ == size_) {
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return -1;
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} else {
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return vals_[counter_++];
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}
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/**
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* Return a distinct random integer in greater or equal to 0 and less
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* than 'n' on each call. It should be called maximum 'n' times.
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* Returns: a random integer
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*/
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int next()
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{
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if (counter_ == size_) {
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return -1;
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}
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};
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else {
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return vals_[counter_++];
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}
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}
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};
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}
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