shared_ptr

public:
                    #ifdef FASTCV_ON
                      //m_data{(T *)::malloc(rows*cols*channels*sizeof(T)), ::free}
                      m_data{(T *)::fcvMemAlloc(rows*cols*channels*sizeof(T), 16), ::fcvMemFree}
                      #else
                      m_data{new T[rows * cols * channels], std::default_delete<T[]>() }
                      #endif

protected:
                  int m_rows, m_cols;
                  int m_channels;
                  std::shared_ptr<T> m_data;