bool cvMatEQ(const cv::Mat& data1, const cv::Mat& data2)
{
    bool success = true;
    // check if is multi dimensional
    if(data1.dims > 2 || data2.dims > 2)
    {
      if( data1.dims != data2.dims || data1.type() != data2.type() )
      {
        return false;
      }
      for(int32t dim = 0; dim < data1.dims; dim++){
        if(data1.size[dim] != data2.size[dim]){
          return false;
        }
      }
    }
    else
    {
      if(data1.size() != data2.size() || data1.channels() != data2.channels() || data1.type() != data2.type()){
        return false;
      }
    }
    int nrOfElements = data1.total()*data1.elemSize1();
    //bytewise comparison of data
    int cnt = 0;
    for(cnt = 0; cnt < nrOfElements && success; cnt++)
    {
      if(data1.data[cnt] != data2.data[cnt]){
        success = false;
      }
    }
    return success;
  }