But we are working on it (a lot of troubles with Jasper).
</UL>
<LI> gdcm doesn't read yet <TT>MPEG2</TT> encoded files.
- <UL>
- But we are working on it.
- </UL>
+
</UL>
<LI>Reader
<UL>
<LI> Allow user to tell <TT>gdcm::Document</TT> constructor he just wants
to load a given list of <TT>DocEntries</TT>
(to save CPU time and RAM space)
- <LI> Allow user to tell <TT>gdcm::Document</TT> constructor he wants
- to force the loading of a given list of <TT>DocEntries</TT>,
- even if there length exceeds the current
- <TT>MAX_SIZE_LOAD_ELEMENT_VALUE</TT>.
<LI> Allow 'frame by frame' reading (should be helpfull for huge
multiframe images)
<LI> Allow subvolume selection / frames selection before reading.
<LI> <A HREF="News.html#missing">Missing Features</a>
<LI> New Features
<UL>
+ <LI><TT>
+ void Document::AddForceLoadElement(uint16_t group, uint16_t elem);
+ </TT><br>
+ allows user to tell <TT>gdcm::Document</TT> Loader he wants
+ to force the loading of a given set of <TT>DocEntries</TT>,
+ even if their length exceeds the current
+ <TT>MAX_SIZE_LOAD_ELEMENT_VALUE</TT>.
+ <br><br>
+ <LI>
+ Many users expect from <TT>vtkGdcmReader</TT> it 'orders' the images
+ (that's the job of <TT>gdcm::SerieHelper</TT> ...)<br>
+ When user <b>knows</b> the files with same Serie UID
+ have same sizes, same 'pixel' type, same color convention, ...
+ the right way to proceed is as follow :
+ <pre>
+ gdcm::SerieHelper *sh= new gdcm::SerieHelper();
+ // if user wants *not* to load some parts of the file headers
+ sh->SetLoadMode(loadMode);
+
+ // if user wants *not* to load some files
+ sh->AddRestriction(group, element, value, operator);
+ sh->AddRestriction( ...
+ sh->SetDirectory(directoryWithImages);
+
+ // if user wants to sort reverse order
+ sh->SetSortOrderToReverse();
+ // or
+ // if user *knows* how to order his files
+ sh->SetUserLessThanFunction(userSuppliedComparisonFunction);
+
+ // here, we suppose only the first Coherent File List is of interest
+ gdcm::FileList *l = sh->GetFirstCoherentFileList();
+
+ // if user is doesn't trust too much the files with same Serie UID
+ if ( !sh->IsCoherent(l) )
+ return; // not same sizes, or not same 'pixel type' -> stop
+
+ sh->OrderFileList(l); // sort the list
+
+ vtkGdcmReader *reader = vtkGdcmReader::New();
+ // if user wants to modify pixel order (Mirror, TopDown, ...)
+ // he has to supply the function that does the job
+ // (a *very* simple example is given in vtkgdcmSerieViewer.cxx)
+ reader->SetUserFunction (userSuppliedFunction);
+
+ // to pass a 'Coherent File List' as produced by gdcm::SerieHelper
+ reader->SetCoherentFileList(l);
+ reader->Update();
+ </pre>
+ You can see a full example in <TT>vtk/vtkgdcmSerieViewer.cxx</TT><br>
+ e.g.<br>
+
+ <TT>vtkgdcmSerieViewer dirname=Dentist mirror</TT><br>
+ <TT>vtkgdcmSerieViewer dirname=Dentist reverse</TT><br>
+ <TT>vtkgdcmSerieViewer dirname=Dentist reverse topdown</TT><br>
+ </pre>
+ <br>
+
+ <LI> <TT>vtkGdcmReader::SetUserFunction (userSuppliedFunction)</TT><br>
+ with :<br>
+ <TT>void userSuppliedFunction(uint8_t *imageData, File *f);</TT><br>
+ allows user to reorganize the pixels of each image just after reading
+ it (to mirror, or topdown the image, for instance)<br>
+ Note : <TT>uint8_t *</TT> doesn't mean it works only on 8 Bits images.
+ <br> It's for prototyping. Feel free to cast it.
+ <br><br>
+ <LI> <TT>
+ SerieHelper::SetUserLessThanFunction(userSuppliedComparisonFunction)
+ </TT><br> with : <br>
+ <TT>bool userSuppliedComparisonFunction(File *, File *);</TT><br>
+ allows user -when he knows more about his files than gdcm does-
+ to give his own comparison function.
+ <LI> <TT>SerieHelper::SetSortOrderToReverse</TT> allows user to ask
+ to sort the Files reverse order.
+ <LI> <TT>SerieHelper::AddRestriction</TT> has now a new constructor<br>
+ <TT>AddRestriction(group, element, value, operator);</TT><br>
+ allows user to exclude some files from the sorting, according to
+ any comparison operator <br>
+ (<TT>GDCM_EQUAL</TT>, <TT>GDCM_DIFFERENT</TT>,
+ <TT>GDCM_GREATER</TT>, <TT>GDCM_GREATEROREQUAL</TT>,
+ <TT>GDCM_LESS</TT>, <TT>GDCM_LESSOREQUAL</TT>), not only on the
+ equality.
+ <br><br>
<LI> <TT>AnonymizeNoLoad</TT> used with <TT>dirin=inputDirectoryName</TT>
anonymizes all the files within the given Directory.
<br>
<br>
<LI> User is now allowed to tell <TT>gdcm::Document</TT> constructor
he doesn't want to deal with <TT>SeqEntry</TT>
- (every time it's possible) <br> and/or he doesn't
- want to deal with <TT>Shadow groups</TT> (every time it's
- possible) <br> or he doesn't
- want to deal with <TT>SeqEntry</TT> that belong to a <TT>Shadow group</TT> (every time it's
- possible)<br>
+ (every time it's possible, i.e for 'true length' Sequences) <br>
+ and/or he doesn't want to deal with <TT>Shadow groups</TT>
+ (every time it's possible i.e. when element <TT>0x0000</TT>
+ exists for this Group) <br>
+ or he doesn't want to deal with <TT>SeqEntry</TT> that belong to a
+ <TT>Shadow group</TT> (every time it's possible
+ -'true length' Sequence-)<br>
use : <br>
<pre>
gdcm::File *f = new gdcm::File();
gdcm::File *f = new gdcm::File(fileName);</TT> <br>
<br>
<LI> User is now allowed to tell <TT>gdcm::DicomDir</TT> constructor
- he doesn't want to deal with <TT>SeqEntry</TT>
- (every time it's possible) <br> and/or he doesn't
- want to deal with <TT>Shadow groups</TT> (every time it's
- possible) <br> or he doesn't
- want to deal with <TT>SeqEntry</TT> that belong to a <TT>Shadow group</TT> (every time it's
- possible)<br> when he parses all the Dicom files within a given
- directory
+ he doesn't want to deal with <TT>SeqEntry</TT>
+ (every time it's possible, i.e for 'true length' Sequences) <br>
+ and/or he doesn't want to deal with <TT>Shadow groups</TT>
+ (every time it's possible i.e. when element <TT>0x0000</TT>
+ exists for this Group) <br>
+ or he doesn't want to deal with <TT>SeqEntry</TT> that belong to a
+ <TT>Shadow group</TT> (every time it's possible
+ -'true length' Sequence-)<br>
+ when he parses all the Dicom files within a given directory.<br>
use : <br>
<pre>
gdcm::DicomDir *f = new gdcm::DicomDir();
<LI> Bug fixes
<UL>
+ <LI> No more trouble when the 'endianess' switches within Sequences.
+ <LI> No more trouble with 'no length Sequences' belonging to a
+ <TT>Shadow Group</TT> when they are 'Implicit VR'.
<LI> The difference between <TT>MONOCHROME1</TT> (low values = bright,
high values = dark) and <TT>MONOCHROME2</TT> (low values = dark,
high values = bright) is now taken into account.<br>
It's no longer up to the user to change the pixels value
<LI> Writing a 'True Dicom' image after reading an <TT>ACR-NEMA</TT> image
does not request any longer from the user to build up
- 'manually' the Meta Elements group (<TT>Ox0002</TT>)
+ 'manually' the Meta Elements group (<TT>0x0002</TT>)
<LI> Old '24 Bits' <TT>ACR-NEMA</TT> are now correctly re-written
in <TT>DICOM V3</TT> mode.
<LI> Element <TT>0x0000</TT> of <TT>Shadow groups</TT> is always forced to be a
Better you use <TT>Explicit Value Representation</TT> writting mode ...
<LI> Troubles on 'Big endian' processors (i.e. Apple/Motorola, SunSparc
...) when writting 16 Bits images.
+ <LI> Troubles on 64-bits processors.
</UL>
</UL>
git://git.creatis.insa-lyon.fr / gdcm.git / commitdiff