opencv错误乘以2垫子的

Question

我在opencv中乘以2个矩阵（Mat对象）。

下面是如何生成第一垫：

cv::Mat R(m, k, CV_8UC1); 
rm.generateRandomMatrix(m, k, 255, R); 

这里是第二个如何生成：

for (int i=0; i<=n; i++) 
{ 
    randomMatrix_Xi rm; 
    cv::Mat Xi(k, 1, CV_8UC1); 
    rm.generateRandomMatrix(k, 1, 255, Xi); 
    random_Xi_Vectors.push_back(Xi); 
    sleep(2); 
} 

这里是我在这两个地方已经使用了generateRandomMatrix（）函数定义：

int randomMatrix_Xi::generateRandomMatrix(int m, int k, int range, cv::Mat R) 
{ 
    typedef boost::mt19937 RNGType; 
    RNGType rng(std::time(0)); 
    boost::uniform_int<> one_to_range(1, range); 
    boost::variate_generator< RNGType, boost::uniform_int<> > number_generator(rng, one_to_range); 
    for (int j=0; j<k; j++) 
    { 
     for (int i = 0; i < m; i++) 
     { 
      int n = number_generator(); 
      R.at<uchar>(i,j) = n; 
      //std::cout<<"Putting "<<n<<" at"<<i<<", "<<j<<std::endl; 
     } 
    } 
} 

最后，这里是我正在做的乘法的地方2垫的：

for (int i = 0; i < n; i++) 
    { 
     std::cout<<" Sizes of matrices to be multiplied: "<<std::endl; 

     cv::Size Xi_size = random_Xi_Vectors[i].size(); 
     cv::Size A_size = R.size(); 
     std::cout<<"R : "<<A_size.height<<" "<<A_size.width<<std::endl; 
     std::cout<<"Xi : "<<Xi_size.height<<" "<<Xi_size.width<<std::endl; 

      cv::Mat temp(960,1, CV_8UC1); 
     cv::Mat temp = random_Xi_Vectors[i] * R; 
     shares.push_back(temp); 
    } 

这是我收到的错误：

r@r-HP-Mini-110:~/l33t/Secret Sharing$ ./mainProgram Sizes of matrices to be multiplied: 
R : 960 2 
Xi : 2 1 
OpenCV Error: Assertion failed (type == B.type() && (type == CV_32FC1 || type == CV_64FC1 || type == CV_32FC2 || type == CV_64FC2)) in gemm, file /build/buildd/opencv-2.3.1/modules/core/src/matmul.cpp, line 701 
terminate called after throwing an instance of 'cv::Exception' 
    what(): /build/buildd/opencv-2.3.1/modules/core/src/matmul.cpp:701: error: (-215) type == B.type() && (type == CV_32FC1 || type == CV_64FC1 || type == CV_32FC2 || type == CV_64FC2) in function gemm 

Aborted (core dumped) 
r@r-HP-Mini-110:~/l33t/Secret Sharing$ 

正如你所看到的，在第一垫的列数相匹配的行第二垫的数量。此外，两个垫的类型也是相同的，即CV_8UC1。那么为什么我得到这个错误。请帮忙。

Answer 1

(type == CV_32FC1 || type == CV_64FC1 || type == CV_32FC2 || type == CV_64FC2) 

，清楚地说，你只能乘浮点垫的

所以使用CV_32FC1（浮动）或CV_64FC1（双）垫代替CV_8UC1

（代码：

boost::variate_generator<RNGType,boost::uniform_int<>> number_generator(rng,one_to_range); 

可能还需要更改，然后，也不确定）