1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
|
/*=========================================================================
Program: GDCM (Grassroots DICOM). A DICOM library
Copyright (c) 2006-2011 Mathieu Malaterre
All rights reserved.
See Copyright.txt or http://gdcm.sourceforge.net/Copyright.html for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
#ifndef GDCMFILEEXPLICITFILTER_H
#define GDCMFILEEXPLICITFILTER_H
#include "gdcmFile.h"
namespace gdcm
{
class Dicts;
/**
* \brief FileExplicitFilter class
* After changing a file from Implicit to Explicit representation (see
* ImageChangeTransferSyntax) one operation is to make sure the VR of each
* DICOM attribute are accurate and do match the one from PS 3.6. Indeed when a
* file is written in Implicit reprensentation, the VR is not stored directly
* in the file.
*
* \warning changing an implicit dataset to an explicit dataset is NOT a
* trivial task of simply changing the VR to the dict one:
* \li One has to make sure SQ is properly set
* \li One has to recompute the explicit length SQ
* \li One has to make sure that VR is valid for the encoding
* \li One has to make sure that VR 16bits can store the original value length
*/
class GDCM_EXPORT FileExplicitFilter
{
public:
FileExplicitFilter():F(new File),ChangePrivateTags(false),UseVRUN(true),RecomputeItemLength(false),RecomputeSequenceLength(false) {}
~FileExplicitFilter() {}
/// Decide whether or not to VR'ify private tags
void SetChangePrivateTags(bool b) { ChangePrivateTags = b;}
/// When VR=16bits in explicit but Implicit has a 32bits length, use VR=UN
void SetUseVRUN(bool b) { UseVRUN = b; }
/// By default set Sequence & Item length to Undefined to avoid recomputing length:
void SetRecomputeItemLength(bool b);
void SetRecomputeSequenceLength(bool b);
/// Set FMI Transfer Syntax
/// Change
bool Change();
/// Set/Get File
void SetFile(const File& f) { F = f; }
File &GetFile() { return *F; }
protected:
bool ProcessDataSet(DataSet &ds, Dicts const & dicts);
bool ChangeFMI();
private:
SmartPointer<File> F;
bool ChangePrivateTags;
bool UseVRUN;
bool RecomputeItemLength;
bool RecomputeSequenceLength;
};
} // end namespace gdcm
#endif //GDCMFILEEXPLICITFILTER_H
|
