类matlab find函数

逻辑矩阵，找出元素1并记录其位置索引。

 int main(int argc, char** argv)
 {
     unsigned char acSrc[][] =
     {
         , , , ,
         , , , ,
         , , , ,
         , , , ,
     };
     printf("acSrc-data address:%p\n", acSrc);

     Mat src(, , CV_8UC1, acSrc);
     printf("src-data address:%p\n", src.data);

     cout << src << endl;

     vector<int> vec_row;
     vector<int> vec_col;

     for (int j = ; j < src.cols; ++j)
     {
         for (int i = ; i < src.rows; ++i)
         {
             if ( == src.at<unsigned char>(i, j))
             {
                 vec_row.push_back(i);
                 vec_col.push_back(j);
             }
             //cout << src.at<int>(i, j) << endl;
         }
     }

     cout << "vec_row.size:" << vec_row.size() << endl;
     cout << "vec_col.size:" << vec_col.size() << endl;

     vector<int>::iterator iter_row = vec_row.begin();
     vector<int>::iterator iter_col = vec_col.begin();

     Mat m = Mat::zeros(, , CV_8UC1);
     cout << m << endl;

     for (; (iter_row != vec_row.end()) && (iter_col != vec_col.end()); ++iter_row, ++iter_col)
     {
         cout << *iter_row << ", " <<  *iter_col << endl; 

         m.at<uchar>(*iter_row, *iter_col) = ;
     }

     cout << m << endl;

     return ;
 }