DCMTK从DICOM数据集中删除私有数据-优快云博客

本文链接：https://blog.youkuaiyun.com/qimo601/article/details/84288904

本文介绍了一个用于从DICOM数据集中删除所有私有标签的示例函数。该函数利用了DCMTK库中DcmItem类的API，并通过检查标签组号来识别并移除私有数据。此外，还提供了获取DICOM文件中数据集的方法及DCMTK中堆栈类的使用说明。

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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类：

this class manages a stack of pointers to DcmObject instances.

The objects pointed to are never touched, e.g. deleted.