pydicom.filereader.read_deferred_data_element

pydicom.filereader.read_deferred_data_element(fileobj_type, filename_or_obj, timestamp, raw_data_elem)

Read the previously deferred value from the file into memory and return a raw data element.

Parameters:
  • fileobj_type (type) – The type of the original file object.
  • filename_or_obj (str or file-like) – The filename of the original file if one exists, or the file-like object where the data element persists.
  • timestamp (time or None) – The time the original file has been read, if not a file-like.
  • raw_data_elem (dataelem.RawDataElement) – The raw data element with no value set.
Returns:

The data element with the value set.

Return type:

dataelem.RawDataElement

Raises:
  • IOError – If filename_or_obj is None.
  • IOError – If filename_or_obj is a filename and the corresponding file does not exist.
  • ValueError – If the VR or tag of raw_data_elem does not match the read value.