Return QPImage without background correction

def get_qpimage_raw(self, idx=0):
        """Return QPImage without background correction"""
        # Load experimental data
        nf = np.load(str(self.path), mmap_mode="c", allow_pickle=False)
        meta_data = copy.copy(self.meta_data)
        qpi = qpimage.QPImage(data=nf,
                              which_data=self.storage_type,
                              meta_data=meta_data,
                              h5dtype=self.as_type)
        # get identifier
        qpi["identifier"] = self.get_identifier(idx)
        return qpi