com.pixelmed.dicom

Class DicomFileUtilities

java.lang.Object

com.pixelmed.dicom.DicomFileUtilities

public class DicomFileUtilities
extends Object

Various static methods helpful for handling DICOM files.

Method Summary

Modifier and Type	Method and Description
static boolean	isDicomOrAcrNemaFile(File file) Does the file contain a DICOM (or DICOM-like ACR-NEMA) dataset ?
static boolean	isDicomOrAcrNemaFile(String filename) Does the file contain a DICOM (or DICOM-like ACR-NEMA) dataset ?
static void	main(String[] arg) Iterate through a list of files and report which are DICOM and which are not.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

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)

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)

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