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OpenCVで乱数生成する (cv::RNG)

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OpenCVで乱数を生成する (cv::RNG)

乱数の生成はstdやboostでも行うことはできるが,OpenCVでも可能.
一様乱数,正規分布の2つであれば,cv::RNGを用いることで簡単に生成ができる.詳しくは公式ドキュメントを参照.

cv::RNG rng(GetTickCount());//乱数生成器を初期化.引数はSeed(ここでは時刻を与えるGetTickCount()[要windows.h]を用いる).
for(auto i=0; i<100; i++)
{
    double rand_uni = rng.uniform(double(0), double(1));//値の範囲を指定.
    double rand_gau = rng.gaussian(1.0); //標準偏差を指定.

    std::cout << "Uniform: " << rand_uni << std::endl 
              << "Gaussian: " << rand_gau << std::endl; 
}
vs4sh
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