DCMTK는 DICOM 데이터 세트에서 개인 데이터 삭제


Howto: Remove private data from a DICOM dataset
There is no ready-to-use function in DCMTK to delete all private data from a DICOM dataset. However, using the API of DcmItem and the fact that all private data has an odd group number, it is pretty easy to do this. Here is some sample code for a corresponding function (not fully tested). It searches the given item recursively for private data and removes it if found:
#include "dcmtk/config/osconfig.h"
#include "dcmtk/dcmdata/dctk.h"
 
void removeAllPrivateTags(DcmItem& dset)
{
  DcmStack stack;
  DcmObject *dobj = NULL;
  DcmTagKey tag;
  OFCondition status = dset.nextObject(stack, OFTrue);
  while (status.good())
  {
    dobj = stack.top();
    tag = dobj->getTag();
    if (tag.getGroup() & 1) // private tag ?
    {
      stack.pop();
      delete ((DcmItem *)(stack.top()))->remove(dobj);
    }
    status = dset.nextObject(stack, OFTrue);
  }
}
 
See documentation of DcmFileFormat and example in  dcmdata documentation  how to get a DcmDataset (which is also an DcmItem object) from an existing DICOM file.
Note1: In the current DCMTK release, there is also an  isPrivate()  method which can be used with the above sample code.
Note2: DCMstack 클래스:
this class manages a stack of pointers to DcmObject instances.
The objects pointed to are never touched, e.g. deleted.

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