chooseRepresentation() fails.

[markw]

Hi,

Why will the following code always fail?:

Code: Select all

DJEncoderRegistration::registerCodecs();

DcmFileFormat dcm;
if (dcm.loadFile("C:\\test.dcm).bad())
    return;

DJ_RPLossless params;
DcmDataset *ds = dcm.getDataset();

ds->chooseRepresentation(EXS_JPEGProcess14SV1TransferSyntax, &params);

if (ds->canWriteXfer(EXS_JPEGProcess14SV1TransferSyntax)) 
    cout << "Yes can write it." << endl;
else 
    cout << "No, cannot write it" << endl;

DJEncoderRegistration::cleanup();

canWriteXfer always returns false. What step have I missed?

Thanks

[Jörg Riesmeier]

Is it possible to compress the same DICOM image using dcmcjpeg?

[markw]

H Jorg,

I upgraded to 3.5.4 and it is compressing fine now. I must have not included some necessary component somewhere while using 3.5.3.

Everything is working well now though,

Thanks