Problem while adding dicom header to a jpeg and save the image as DICOM

[vmunukutla]

Hi am getting an exception
java.lang.ClassCastException: org.dcm4cheri.util.UIDGeneratorImpl cannot be cast to org.dcm4che.util.UIDGenerator
while adding dicom header to a jpeg and save the image as DICOM.The code snippet as well as
exception stacktrace is as follows:
I am using Tudor Dicom Tools and dcm4che.jar.

Code:

--------------------------------------------------------------------------------
File f1 = new File("D:
ScanImage224.jpg");
File f2 = new File("D:
ScanImage224.dcm");
Image image = ImageIO.read(f1);
DicomExporter de = new DicomExporter();
DicomHeader dh = new DicomHeader(); dh.createDefaultHeader();
ImagePlus imp = new ImagePlus("",image);
de.export(imp, f2, dh);

Exception

--------------------------------------------------------------------------------
java.lang.ClassCastException: org.dcm4cheri.util.UIDGeneratorImpl cannot be cast to org.dcm4che.util.UIDGenerator
at org.dcm4che.util.UIDGenerator.getInstance(UIDGenerator.java:51)
at org.dcm4cheri.imageio.plugins.DcmImageWriter.getDefaultStreamMetadata(DcmImageWriter.java:328)
at lu.tudor.santec.dicom.exporter.DicomExporter.export(DicomExporter.java:111)
at lu.tudor.santec.dicom.exporter.DicomExporter.export(DicomExporter.java:91)
at ij.gui.VerticalToolbar.exportToDICOM(VerticalToolbar.java:545)
at ij.gui.VerticalToolbar.actionPerformed(VerticalToolbar.java:479)
at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)
at java.awt.AWTEventMulticaster.mouseReleased(Unknown Source)
at java.awt.Component.processMouseEvent(Unknown Source)
at javax.swing.JComponent.processMouseEvent(Unknown Source)
at java.awt.Component.processEvent(Unknown Source)
at java.awt.Container.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)

[Johannes Hermen]

> Problem while adding dicom header to a jpeg and save the image as DICOM
>
> Hi am getting an exception
> java.lang.ClassCastException: org.dcm4cheri.util.UIDGeneratorImpl cannot
be
> cast to org.dcm4che.util.UIDGenerator
> while adding dicom header to a jpeg and save the image as DICOM.The code
> snippet as well as
> exception stacktrace is as follows:
> I am using Tudor Dicom Tools and dcm4che.jar.

Seems you are using an old version of the DICOM Tools? We are using the
dcm4che2 libs since some time and have done a lot of changes and new
features.
The code for exporting has although changed a bit:

DicomExporter exporter = new DicomExporter();
File dcmFile = new File("/home/hermenj/jhermen.dcm");
ImagePlus ip = new ImagePlus("/home/hermenj/img.jpg");

DicomObject dObj = exporter.createHeader(ip, true, true, true);

// if wanted, set additional tags...
DicomAnonymizer.addTag(dObj, Tag.PatientName, "Testpatient");

exporter.writeImage(dObj, ip, dcmFile);

Please try the latest version from
http://santec.tudor.lu/project/optimage/dicom/start and be sure to exchange
all dcm4che libs with the ones from the new dicom-tools.

Greets
        Johannes


-----------------------------------------------------------------
Johannes Hermen  -  Ingenieur de Recherche
[hidden email]
-----------------------------------------------------------------
CRP Henri Tudor  http://www.santec.tudor.lu
29, Avenue John F. Kennedy
L-1855 Luxembourg
-----------------------------------------------------------------

[vmunukutla]

Hi,
Thanks for your reply .. the code I am using is working fine if I execute it as a standalone program .. but I am using the code in a signed applet which is integrated in a web application ... I am getting the exception when accessed from multiple webclients...  

FYI. I am using dcm4che 1.4.9

-Phanikanth

Johannes Hermen wrote

> Problem while adding dicom header to a jpeg and save the image as DICOM
>
> Hi am getting an exception
> java.lang.ClassCastException: org.dcm4cheri.util.UIDGeneratorImpl cannot
be
> cast to org.dcm4che.util.UIDGenerator
> while adding dicom header to a jpeg and save the image as DICOM.The code
> snippet as well as
> exception stacktrace is as follows:
> I am using Tudor Dicom Tools and dcm4che.jar.

Seems you are using an old version of the DICOM Tools? We are using the
dcm4che2 libs since some time and have done a lot of changes and new
features.
The code for exporting has although changed a bit:

DicomExporter exporter = new DicomExporter();
File dcmFile = new File("/home/hermenj/jhermen.dcm");
ImagePlus ip = new ImagePlus("/home/hermenj/img.jpg");

DicomObject dObj = exporter.createHeader(ip, true, true, true);

// if wanted, set additional tags...
DicomAnonymizer.addTag(dObj, Tag.PatientName, "Testpatient");

exporter.writeImage(dObj, ip, dcmFile);

Please try the latest version from
http://santec.tudor.lu/project/optimage/dicom/start and be sure to exchange
all dcm4che libs with the ones from the new dicom-tools.

Greets
        Johannes


-----------------------------------------------------------------
Johannes Hermen  -  Ingenieur de Recherche
[e-mail]
-----------------------------------------------------------------
CRP Henri Tudor  http://www.santec.tudor.lu
29, Avenue John F. Kennedy
L-1855 Luxembourg
-----------------------------------------------------------------