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<H1>Gdcm News</a></H1>
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<HR size="1"><ADDRESS style="align: right;"></ADDRESS>
<H2>
<UL>
<LI> Decoders
<UL>
- <LI> gdcm doesn't read yet JPEG-LS and JPEG2000 encoded files.
- <LI> gdcm doesn't read yet MPEG encoded files.
+ <LI> gdcm doesn't read yet JPEG-LS encoded files.
+ <UL>
+ We said 'JPEG-LS', not Lossless Jpeg ...<br>
+ [JPEG-LS is the basis for new lossless/near-lossless compression
+ standard for continuous-tone images intended for JPEG2000.
+ The standard is based on the LOCO-I algorithm
+ (LOw COmplexity LOssless COmpression for Images)
+ developed at Hewlett-Packard Laboratories]
+ </UL>
+ <LI> gdcm doesn't read yet all JPEG2000 encoded files.
+ <UL>
+ But we are working on it (a lot of troubles with Jasper).
+ </UL>
+ <LI> gdcm doesn't read yet MPEG2 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 'frame by frame' reading (should be helpfull for huge multiframe
-images)
+ <LI> Allow 'frame by frame' reading (should be helpfull for huge
+ multiframe images)
+ <LI> Allow subvolume selection / frames selection before reading.
<LI> Expose Read/Decompression mechanisms to allow user getting
information from <tt>DICOMDIR</TT> <br> -or from his own Data Base-
and reading his images without parsing
<TT>Shadow groups</TT> (if any)
<LI> Allow user to tell the Writer which compression mode he wants<br>
(Right now, no one is available)
+ <LI> Allow user to tell the Writer he wants to split a
+ <TT>Multiframe</TT> image into a serie of
+ <TT>Single frame</TT> images.
+ <LI> Allow user to tell the Writer he wants to agregate a
+ Serie of <TT>Single frame</TT> images into a
+ <TT>Multiframe</TT> image.
</UL>
<LI>Reader / Writer
<UL>
entries)to the default entry list, before
making a <TT>DICOMDIR</TT> from a root directory
<LI> Allow user to add an entry of his owns (for instance an <TT>Icon</TT>
- to each image, or to each Serie.
+ to each image, or to each Serie).
</UL>
<LI> SerieHelper
<UL>
<UL>
<LI>
<a href="uml-gdcm.pdf">gdcm UML Class Diagram</a> current version.
- <LI>
+ <br><br>
</UL>
<LI> New Features
<UL>
+ <LI> <TT>AnonymizeNoLoad</TT> used with <TT>dirin=inputDirectoryName</TT>
+ anonymizes all the files within the given Directory.
+ <br>
+ User may also choose extra elements he wants to rub out: <br>
+ <TT>rubout=listOfElementsToRubOut</TT><br>
+ with <tt>listOfElementsToRubOut : group1-elem1,group2-elem2,
+ ...</TT> (in hexa, no space within the list )
+ <br><br>
+ <LI> <TT>gdcm::SerieHelper()</TT> has a new method
+ <TT>void AddGdcmFile(File *header)</TT>, that allows aware user to
+ create a '<TT>FileList</TT>' (actually a
+ <TT>std::vector< File* > </TT>).<br>
+ The <TT>FileList</TT> created this way will be the
+ 'first one' in the <TT>gdcm::FileHelper()</TT> (retrieve it with
+ <TT>FileList *GetFirstCoherentFileList()</TT> ).<br>
+ It may be sorted using <TT>OrderFileList</TT>.<br>
+ No 'coherence check' will be performed on this <TT>FileList</TT>
+ before sorting.<br>
+ It may be passed to a <TT>vtkGdcmReader</TT>
+ (to avoid parsing twice the files)
+ <br><br>
+ <LI> <TT>vtkGdcmReader</TT> can now get the result of
+ <TT>gdcm::SerieHelper</TT> (to avoid parsing twice the files)<br>
+ Proceed as follow :<br>
+ <pre>
+ gdcmSerieHelper *sh = new gdcmSerieHelper();
+ sh->SetDirectory(myImageDirectory, true);
+ gdcmFileList *l = s->GetFirstCoherentFileList();
+ s->OrderFileList(l);
+
+ vtkGdcmReader *gr = new vtkGdcmReader();
+ gr->SetCoherentFileList(l);
+ gr->Update();
+ </pre>
+ This works with a directory that contains only one '<TT>Serie</TT>'
+ (same <TT>Serie UID</TT> for all the images).<br>
+ If it contains more than one <TT>Serie</TT>, you'll have to loop
+ on the Series, using <TT>GetNextCoherentFileList()</TT>;<br>
+ It will be up to the user to delete the <TT>gdcm::File</TT>.
+ <br><br>
+ See <TT>vtkgdcmSerieViewer</TT> for an example.
+ <br><br>
<LI>Both <TT>vtkgdcmViewer</TT> and <TT>vtkgdcmViewer2</TT>
are available to allow easy displaying of single/multiframe
- GreyLevel/RGB/PaletteColor images
+ GreyLevel/RGB/PaletteColor images<br><br>
<LI> <TT>DICOMDIR</TT> anonymiser (<TT>Load</TT> and <TT>Noload</TT> mode)
+ <br><br>
+ <LI> Because the <TT>gdcm::DicomDir::Load()</TT> method may be used
+ either for loading an already made <TT>DICOMDIR</TT> file or for
+ parsing all the dicom files with a given root directory we
+ syntaxically separated the operations: <br>
+ For loading an already made <TT>DICOMDIR</TT> file, use : <br>
+ <pre>
+ gdcm::DicomDir *d = new gdcm::DicomDir();
+ d->SetFileName(fileName);
+ d->Load( );
+ </pre>
+
+ For parsing all the dicom files within a given root directory, use :<br>
+ <pre>
+ gdcm::DicomDir *d = new gdcm::DicomDir();
+ d->SetDirectoryName(dirName);
+ d->Load( )
+ </pre>
+
+ <b>Don't</b> use any longer old deprecated style: <br>
+ <TT>
+ gdcm::DicomDir *d = new gdcm::DicomDir();<br>
+ d->SetParseDir(true); // </TT>or <TT>d->SetParseDir(false);<br>
+ d->Load( fileName );<br>
+ </TT>
+ <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>
- use : <br><TT>
- gdcm::File *f = new gdcm::File();<br>
- f->SetLoadMode(NO_SEQ | NO_SHADOW);<br>
- f->Load(fileName);<br>
- </TT>
- instead of : <br>
+ use : <br>
+ <pre>
+ gdcm::File *f = new gdcm::File();
+ f->SetLoadMode(NO_SEQ); | depending on what
+ f->SetLoadMode(NO_SHADOW); | you want *not*
+ f->SetLoadMode(NO_SEQ | NO_SHADOW);| to load from the
+ f->SetLoadMode(NO_SHADOWSEQ); | target file
+ f->SetFileName(fileName);
+ f->Load( );
+ </pre>
+ <b>Don't</b> use any longer old deprecated style: <br>
<TT>
gdcm::File *f = new gdcm::File(fileName);</TT> <br>
- (old style still available)
-
+ <br>
<LI> User is now allowed to tell <TT>gdcm::DicomDir</TT> constructor
+ he doesn't want to deal with <TT>SeqEntry</TT>
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>
- use : <br><TT>
- gdcm::DicomDir *dcmdir = new gdcm::DicomDir( );<br>
- dcmdir->SetParseDir(true);<br>
- dcmdir->SetLoadMode(NO_SEQ | NO_SHADOW);<br>
- dcmdir->Load(dirName);<br>
- </TT>
- instead of : <br>
+ 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
+ use : <br>
+ <pre>
+ gdcm::DicomDir *f = new gdcm::DicomDir();
+ f->SetLoadMode(NO_SEQ); | depending on what
+ f->SetLoadMode(NO_SHADOW); | you want *not*
+ f->SetLoadMode(NO_SEQ | NO_SHADOW);| to load from the files
+ f->SetLoadMode(NO_SHADOWSEQ); | within the root directory
+ f->SetDirectoryName(rootDirectoryName);
+ f->Load( );
+ </pre>
+ <b>Don't</b> use any longer old deprecated style: <br>
<TT>
gdcm::DicomDir *dcmdir = new gdcm::DicomDir(dirName, true);</TT><br>
- (old style still available)
- <LI>
+ <br>
</UL>
<LI> Bug fixes
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>Ox0002</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
<TT>ValEntry</TT> and its <TT>VR</TT> is forced to <TT>UL</TT>
- <LI>
+ <br><br>
</UL>
<LI> A.P.I. breaking modifications (since previous version : <TT>1.0</TT>)
<LI> Known bugs
<UL>
- <LI>
+ <LI> Use of <TT>Implicit Value Representation</TT> writting mode may
+ causes troubles, when there are some <TT>SQ</TT> belonging to a
+ <TT>Shadow Group</TT>. <br>
+ Better you use <TT>Explicit Value Representation</TT> writting mode ...
</UL>
- <LI> Sample Data
- <UL>
- Get a <a href="gdcmData.tar.gz">gzipped tarball</a> of sample data
- (warning : 185 Megabytes ...)
- </UL>
</UL>
git://git.creatis.insa-lyon.fr / gdcm.git / blobdiff