Class DicomFileUtilities

java.lang.Object
com.pixelmed.dicom.DicomFileUtilities

public class DicomFileUtilities extends Object

Various static methods helpful for handling DICOM files.

  • Method Details

    • isDicomOrAcrNemaFile

      public static boolean isDicomOrAcrNemaFile(String filename)

      Does the file contain a DICOM (or DICOM-like ACR-NEMA) dataset ?

      Any exceptions during attempts to read are caught and false returned.

      Parameters:
      filename - the file
      Returns:
      true if file exists, can be read, and seems to contain a DICOM or ACR-NEMA dataset (with or without a PS 3.10 preamble and meta information header)
    • isDicomOrAcrNemaFile

      public static boolean isDicomOrAcrNemaFile(File file)

      Does the file contain a DICOM (or DICOM-like ACR-NEMA) dataset ?

      Any exceptions during attempts to read are (silently) caught and false returned.

      Note that this method may return true but DicomInputStream and AttributeList may fail to read the file, since it may be "bad" ways that are not supported, e.g., missing TransferSyntaxUID in meta information header, etc.

      Will detect files with:

      • PS 3.10 meta-header (even if in invalid big-endian transfer syntax and even if 1st meta information header attribute is not group length)
      • no meta-header but in little or big endian and explicit or implicit VR starting with a group 0x0008 attribute element <= 0x0018 (SOPInstanceUID)

      Will reject everything else, including files with:

      • no meta-header and not starting with a group 0x0008 attribute, e.g. that have command (group 0x0000) elements at the start of the dataset
      Parameters:
      file - the file
      Returns:
      true if file exists, can be read, and seems to contain a DICOM or ACR-NEMA dataset (with or without a PS 3.10 preamble and meta information header)
    • main

      public static void main(String[] arg)

      Iterate through a list of files and report which are DICOM and which are not.

      Parameters:
      arg - a list of files to test