<BODY>
-<!#######################################################################>
+<!--#######################################################################-->
<H1>Gdcm News</a></H1>
-<!#######################################################################>
+<!--#######################################################################-->
<HR size="1"><ADDRESS style="align: right;"></ADDRESS>
<H2>
We know the following are missing; don't loose time looking for them ...<br>
We know they could be helpfull. We shall add them some day.<br>
Any contribution is welcome.
-
<UL>
- <LI> gdcm doesn't read yet JPEG-LS and JPEG2000 encoded files.
- <LI> Allow user to tell <TT>gdcm::Document</TT> constructor he doesn't
- want to deal with <TT>SeqEntry</TT (every time it's possible)
- <LI> Allow user to tell <TT>gdcm::Document</TT> constructor he doesn't
- want to deal with Shadow groups
- <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 the Writer he doesn't want to write down
+<LI> Decoders
+ <UL>
+ <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 JPEG2000 encoded files.
+ <UL>
+ But we are working on it.
+ </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 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
+ the header, one more time.
+ </UL>
+ <LI>Writer
+ <UL>
+ <LI> Allow user to tell the Writer he doesn't want to write down
<TT>SeqEntry</TT> (if any)
- <LI> Allow user to tell the Writer he doesn't want to write down
- Shadow groups (if any)
- <LI> <TT>Icon Image</TT> management (Read and Write)
- <LI> <TT>DICOMDIR</TT> full management (not limited to
+ <LI> Allow user to tell the Writer he doesn't want to write down
+ <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>
+ <LI> Full <TT>Icon Image</TT> management (Read and Write)
+ <LI> Full <TT>Overlays</TT> management (Read and Write) <br>
+ both for '<TT>ACR-NEMA</TT> style' (using groups <TT>0x6000</TT>
+ and nexts) and '<TT>DICOM V3</TT> style' (using Sequences)
+ </UL>
+<LI> <TT>DICOMDIR</TT>
+ <UL>
+ <LI> <TT>DICOMDIR</TT> full management (not limited to
<TT> PATIENT</TT>/<TT>STUDY</TT>/<TT>SERIE</TT>/<TT>IMAGE</TT>)
- <LI> Allow user to add an Entry to the default entry list, for
+ <LI> Allow user to add an entry (belonging to the file header Dicom
+ entries)to the default entry list, before
making a <TT>DICOMDIR</TT> from a root directory
- <LI> <TT>DICOMDIR</TT> anonymiser (<TT>Load</TT> and <TT>Noload</TT> mode)
- <LI> 16-bits-LUT full Management
- <LI> User friendly management of <TT>Rescale Slope</TT> and
+ <LI> Allow user to add an entry of his owns (for instance an <TT>Icon</TT>
+ to each image, or to each Serie).
+ </UL>
+<LI> SerieHelper
+ <UL>
+
+ <LI> An accurate <TT>SerieHelper</TT> <br>
+ Right now <TT>SerieHelper</TT> only works on 'bona fide Series', and
+ breaks on wrongly forged Series.<br>
+ We are still looking for any heuristics...
+ <LI> A <TT>SerieHelper</TT> that would use the <TT>DICOMDIR</TT> (if any)
+ instead of parsing all the files within the Root Directory
+ </UL>
+<LI> Other
+ <UL>
+ <LI> 16-bits-LUT full Management
+ <LI> User friendly management of <TT>Rescale Slope</TT> and
<TT>Rescale Intercept</TT>
- <LI> Allow parsing the Shadow groups against a user supplied
- Private Dicom Dictionary (pfff!...)
- <LI> An accurate <TT>SerieHelper</TT>
+ <LI> Allow parsing the <TT>Shadow groups</TT> against a user supplied
+ private <TT>Dicom Dictionary</TT> (pfff!...)
+ </UL>
</UL>
-
<!#######################################################################>
-
-
-
<HR size="1"><ADDRESS style="align: right;"></ADDRESS>
<H2>
<A CLASS="anchor" NAME="NewsCurrentVersion">
<LI>State of the art
<UL>
<LI>
- <a href="uml-gdcmV1.0.pdf">gdcm UML Class Diagram</a> current version.
-
+ <a href="uml-gdcm.pdf">gdcm UML Class Diagram</a> current version.
<LI>
</UL>
- <LI> New Features / Bug fixes
+ <LI> New Features
<UL>
<LI>Both <TT>vtkgdcmViewer</TT> and <TT>vtkgdcmViewer2</TT>
are available to allow easy displaying of single/multiframe
GreyLevel/RGB/PaletteColor images
+ <LI> <TT>DICOMDIR</TT> anonymiser (<TT>Load</TT> and <TT>Noload</TT> mode)
+ <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>
+ 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>
+ <TT>
+ gdcm::File *f = new gdcm::File(fileName);</TT> <br>
+ (old style still available)
+
+ <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>
+ 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>
+ <TT>
+ gdcm::DicomDir *dcmdir = new gdcm::DicomDir(dirName, true);</TT><br>
+ (old style still available)
+ <LI>
+ </UL>
+
+ <LI> Bug fixes
+ <UL>
+ <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>)
+ <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>
</UL>
<LI> A.P.I. breaking modifications (since previous version : <TT>1.0</TT>)
<UL>
- <LI>
- <LI>
- </UL>
+ <LI> NEVER more API breaking modifications !!!
+ </UL>
<LI> Known bugs
<UL>
- <LI> The difference between <TT>MONOCHROME1</TT> and <TT>MONOCHROME2</TT>
- is not taken into account. It's up to the user to change the pixels
- value
- <LI> Writing a 'True Dicom' image after reading an ACR-NEMA image requests
- from the user to build up 'manually' the Meta Elements group (0002)
- <LI> Management, on Big Endian Processors, of unloaded BinEntries
- <LI> Old '24 Bits' ACR-NEMA are not correctly re-written in DICOM mode.
+ <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>
+
</UL>
+
<!#######################################################################>
<HR size="1"><ADDRESS style="align: right;"></ADDRESS>
<H2>
<A CLASS="anchor" NAME="NewsVersion1_0">
<B>Version 1.0 (Feb 14 2005)</B></A>
</H2>
-
-<!#######################################################################>
-
-
-
<UL>
<LI>State of the art
<UL>
- <LI>
- <a href="Doc1.0/uml-gdcmV1.0.pdf">gdcm 1.0 UML Class Diagram</a> version.
- <LI> <a href= "Doc1.0/html.user/index.html">User Documentation"</a>
- <LI> <a href= "Doc1.0/html.developper/index.html">Developper
-Documentation"</a>
+ <LI>
+
<a href="Doc1.0/uml-gdcmV1.0.pdf">gdcm 1.0 UML Class Diagram</a> version.
+
<LI> <a href= "Doc1.0/html.user/index.html">User Documentation"</a>
+
<LI> <a href= "Doc1.0/html.developper/index.html">Developper
+ Documentation"</a>
<LI> Final check of the jpeg sub-library: all 'classical' jpeg
compressed Dicom files can be read<br>
<LI>All the previously gdcm-breaker images are now readable<br>
<LI> A.P.I. breaking modifications (since previous version : <TT>0.6</TT>)
<UL>
- <LI> Use of <TT> namespace</TT> : all the methods formerly called
- <TT>className::gdcmXxx()</TT> are now called <TT>className::Xxx()</TT>
- <LI> Removal of accessors <TT>GetXxxByname</TT>, <TT>SetXxxByname</TT>
- and <TT>GetXxxByNumber</TT>, <TT>SetXxxByNumber</TT>
- replaced by <TT>GetXxx</TT>, <TT>SetXxx</TT>
- <LI> a <TT>gdcm::Document</TT> is now specialized
- in <TT>gdcm::DicomDir</TT> and <TT>gdcm::File</TT>
+ <LI> Use of <TT> namespace</TT> : all the methods formerly named
+ <TT>className::gdcmXxx()</TT> are now named <TT>className::Xxx()</TT>
+ <br> End user will have to call them as <TT>gdcm::className::Xxx() </TT>
+ <LI> a <TT>gdcm::Document</TT> is now specialized in :
+ <UL>
+ <LI> <TT>gdcm::DicomDir</TT>
+ <LI> <TT>gdcm::File</TT>
+ </UL>
+ <LI> a <TT>gdcm::DicomElementSet</TT> is composed of a set of
+ <TT>gdcm::DicomDocEntry</TT>
+ <LI> a <TT>gdcm::DicomDocEntry</TT> can be :
+ <UL>
+ <LI> a <TT>gdcm::ContentEntry</TT>, specialized in :
+ <UL>
+ <LI> <TT>gdcm::ValEntry</TT>
+ <LI> <TT>gdcm::BinEntry</TT> (no longer a specialization of
+ <TT>gdcm::ValEntry</TT>)
+ </UL>
+ <LI> a <TT>gdcm::SeqEntry</TT>
+ </UL>
+ <LI> Removal of useless accessors <TT>GetXxxByname</TT>, <TT>SetXxxByname</TT>
+ <LI> Renaming of accessors <TT>GetXxxByNumber</TT>, <TT>SetXxxByNumber</TT>
+ as follow :
+ <UL>
+ <LI> <TT>GetEntryByNumber
+
+ --> GetEntryValue</TT>
+ <LI> <TT>GetEntryLengthByNumber --> GetEntryLength</TT>
+ <LI> <TT>GetEntryOffsetByNumber --> GetEntryOffset</TT>
+ <LI> <TT>GetEntryVRByNumber
+ --> GetEntryVR</TT>
+ <LI>
+ <LI> <TT>GetDocEntryByNumber
+ --> GetDocEntry</TT>
+ <LI> <TT>GetValEntryByNumber
+ --> GetValEntry</TT>
+ <LI> <TT>GetBinEntryByNumber
+ --> GetBinEntry</TT>
+ <LI> <TT>GetSeqEntryByNumber
+ --> GetSeqEntry</TT>
+ </UL>
</UL>
-
</UL>
-
<!#######################################################################>
<HR size="1"><ADDRESS style="align: right;"></ADDRESS>
<H2>
<TT>gdcmHeader</TT> class and <TT>gdcmDicomDir</TT> class.
<LI> Massive modifications in the Class Diagram :
<UL>
- <LI> Entries (<TT>gdcmEntry</TT>) are now separated into
- <TT>ValEntry</TT> and <TT>SeqEntry</TT> (whose VR =
- <TT>SQ</TT>)
- <LI> a <TT>gdcmDocument</TT> is_a <TT>gdcmElementSet</TT>,
- composed of a set of <TT>gdcmValEntry</TT>
- and <TT>gdcmSeqEntry</TT>
- <LI> a <TT>gdcmSeqEntry</TT> is considered as a set
- of <TT>gdcmSQItem</TT>
- <LI> Dicom Sequences (VR = <TT>SQ</TT>) are now dealt as tree-like
- structures within <TT>gdcmSQItem</TT> class.<br>
- they are considered as a set of <TT>gdcmSQItem</TT>s
- <LI> a <TT>gdcmSQItem</TT> is_a <TT>gdcmElementSet</TT>
- </UL>
- <LI> Improvement of the jpeg sub-library: jpeg
+ <LI> any dicom related file is a <TT>gdcmDocument</TT>
+ <LI> a <TT>gdcmDocument</TT> can be :
+ <UL>
+ <LI> a <TT>gdcmHeader</TT>, if it contains pixel data
+ <LI> a <TT>gdcmDicomDir</TT>, if it contains only informations
+ on the files in a given directory
+ </UL>
+
+ <LI> a <TT>gdcmDocument</TT> is_a <TT>gdcmElementSet</TT>,
+ composed of a set of <TT>gdcmEntry</TT> separated into :
+ <UL>
+ <LI> <TT>gdcmValEntry</TT><br>
+ a specialization of <TT>gdcmValEntry</TT>, for 'non
+ <TT>std::string</TT> representable' values is
+ <TT>gdcmBinEntry</TT>
+ <LI> <TT>gdcmSeqEntry</TT> (VR = <TT>SQ</TT>, i.e Dicom Sequences)<br>
+ they are dealt as tree-like structures :<br>
+ - a <TT>gdcmSeqEntry</TT> is considered as a set
+ of <TT>gdcmSQItem</TT>,<br>
+ - a <TT>gdcmSQItem</TT> is_a <TT>gdcmElementSet</TT>, composed
+ of <TT>gdcmDocEntries</TT>, recursively <br>
+ </UL>
+ </UL>
+ <LI> Improvement of the jpeg sub-library: jpeg
compressed Dicom files (lossless and lossy)
might be read (check-it out)
</UL>
<LI> Introduction of a RLE (Run-Time Encoding) library
<LI> Color images (RGB or Palette Color) are dealt with
<LI> Confusing names <TT>gdcmPatient</TT>, <TT>gdcmStudy</TT>,
- <TT>gdcmDicomDirSerie</TT>, <TT>gdcmDicomDirPatient</TT> changed to
+ <TT>gdcmSerie</TT>, <TT>gdcmPatient</TT> changed to
<TT>gdcmDicomDirPatient</TT>, <TT>gdcmDicomDirStudy</TT>,
<TT>gdcmDicomDirSerie</TT>, <TT>gdcmDicomDirPatient</TT>
git://git.creatis.insa-lyon.fr / gdcm.git / blobdiff