X-Git-Url: https://git.creatis.insa-lyon.fr/pubgit/?a=blobdiff_plain;f=Doc%2FWebsite%2FNews.html;h=9b8e5fba7c19939da00f1d6dbcc71c11a31b71de;hb=bcbba24e317b815f9ae86263001d97551c3e8db3;hp=0ea470e3b217c4e2c6244c974df32c54ff15691e;hpb=1e79eb643b485fef0bf0c3e0d4b113364e9ec411;p=gdcm.git

diff --git a/Doc/Website/News.html b/Doc/Website/News.html
index 0ea470e3..9b8e5fba 100644
--- a/Doc/Website/News.html
+++ b/Doc/Website/News.html
@@ -24,25 +24,27 @@ Any contribution is welcome.
 <UL>
 <LI> Decoders   
    <UL>
-      <LI> gdcm doesn't read yet JPEG-LS encoded files.
+      <LI> gdcm doesn't read yet <TT>JPEG-LS</TT> 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. 
+          We said '<TT>JPEG-LS</TT>', not Lossless Jpeg ...<br>
+          [<TT>JPEG-LS</TT> is the basis for new lossless/near-lossless compression
+          standard for continuous-tone images intended for <TT>JPEG2000</TT>. 
           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.
+     <LI> gdcm doesn't read yet all <TT>JPEG2000</TT> 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.
+         But we are working on it (a lot of troubles with Jasper).
+         Update: as of Oct 10 2005, we are currently investigating another library:
+         openjpeg. The problem still exist for this library but one of the author
+         is currently working on it:
+            http://www.openjpeg.org/forum/viewtopic.php?t=18
       </UL>
+      <LI> gdcm doesn't read yet <TT>MPEG2</TT> encoded files.
+
    </UL>
-<LI>Reader
+   <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> 
@@ -75,7 +77,7 @@ Any contribution is welcome.
       <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)
+            and next) and '<TT>DICOM V3</TT> style' (using Sequences)
    </UL>
 <LI> <TT>DICOMDIR</TT> 
     <UL>
@@ -101,32 +103,395 @@ Any contribution is welcome.
    <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 <TT>Shadow groups</TT> against a user supplied 
-           private <TT>Dicom Dictionary</TT> (pfff!...)
+           <TT>Rescale Intercept</TT>.<br>
+           (Well... Maybe it's up to the application to deal with it, not to
+           gdcm ?)
+      <LI> Allow manual adjunction / automatic recognition (pfff!...)
+           of the private <TT>Dicom Dictionary</TT>
+           to be used to parse <TT>Shadow groups</TT> against.
+      <LI> User friendly way of anonymizing image when Patient's name is
+           carved in the Pixels :-(
    </UL>
 </UL>
 <!#######################################################################>
 <HR size="1"><ADDRESS style="align: right;"></ADDRESS>
 <H2>
    <A CLASS="anchor" NAME="NewsCurrentVersion">
-   <B>Current Version</B></A>
+   <B>Current Version (CVS)</B></A>
       <B></B></A>
 </H2>
 
 <UL>
+   <LI> <A HREF="News.html#missing">Missing Features</a>
    <LI>State of the art
    <UL>    
       <LI>
-         <a href="uml-gdcm.pdf">gdcm UML Class Diagram</a> current version.
+         <a href="uml-gdcmV1.2.pdf">gdcm UML Class Diagram</a> current version.
+      <LI> <a href= "DocCVS/html.user/index.html">User Documentation</a>
+      <LI> <a href= "DocCVS/html.developper/index.html">Developper
+         Documentation</a> 
+   <LI> New Features
+   <UL>
+      <LI> To <i>try to</i> make gdcm images PACS usable, user is now allowed to
+           gdcm what kind of image he wants to write, using :  <br>
+   <TT>void FileHelper::SetContentType (ImageContentType c);</TT> <br>
+   Four different types are identify (probabely more will be added) :
+      <UL> 
+         <LI>
+      1) user created ex nihilo his own image and wants to write it as a Dicom image.<br>
+          c : <TT>USER_OWN_IMAGE</TT>
+         <LI>
+      2) user modified the pixels of an existing image, using mathematical operations.<br>
+          c : <TT>FILTERED_IMAGE</TT>
+         <LI>
+      3) user created a new image, using existing images (eg MIP, MPR, cartography image)<br>
+          c : <TT>CREATED_IMAGE</TT>
+         <LI>
+       4) user modified/added some tags *without processing* the pixels (anonymization, etc)<br>
+         c : <TT>UNMODIFIED_PIXELS_IMAGE</TT> 
+      </UL>
+      <LI> Stupid difference between <TT>gdcm::ValEntry</TT> 
+           and <TT>gdcm::BinEntry</TT> removed. <br>
+           Only <TT>gdcm::DataEntry</TT> exist, now. 
+           Should have been considered as a 'Bug Fix'.<br>
+           Actually, it's an API breaking modification ...
+      <UL>
+         <LI>
+            <TT>std::string const &DataEntry::GetString() const</TT><br>
+            returns as a string (when possible) the value of the DataEntry
+         <LI>
+            <TT>void DataEntry::SetString(std::string const &value)</TT><br>
+             Sets the 'value' of a DataEntry, passed as a std::string 
+         <LI>
+            <TT>void DataEntry::SetBinArea( uint8_t *area, bool self ) </TT><br>
+             Sets the value (non string) of the current Dicom DataEntry
+         <LI>
+              <TT>void DataEntry::CopyBinArea( uint8_t *area, uint32_t length )</TT><br>
+               Inserts the value (non string) into the current DataEntry 
+         <LI>
+               <TT>void DataEntry::SetValue(const uint32_t &id, const double
+ &val)</TT><br>
+               Inserts the elementary (non string) value into the current
+               (multivaluated) DataEntry, at the <TT>id></TT> position.
+         <LI>
+               <TT>double DataEntry::GetValue(const uint32_t &id) const </TT><br>
+               returns, as a double one of the values (when entry is 
+               multivaluated), identified by its index <TT>id</TT>. 
+      </UL>
+      <LI> 
+   <TT>DocEntrySet::GetEntryValue()</TT> replaced by
+           <TT>DocEntrySet::GetEntryString()</TT> <br>
+      <LI> SerieHelper : <br>     
+           Add some methods, to split a 'SingleSerieUID' Fileset into 
+           'Extra Coherent'  FileSets. <br>
+           They return a std::map of 'Filesets' (actually : std::vector 
+           of gdcm::File*)<br>
+           The key is the 'Orientation', the 'Position' 
+           or the value of a user choosen 'Tag' <br>
+           -  <TT>XCoherentFileSetmap SplitOnOrientation(FileList *fileSet);
+              </TT><br>
+           -  <TT>XCoherentFileSetmap SplitOnPosition(FileList *fileSet);
+              </TT> <br>
+           -  <TT>XCoherentFileSetmap SplitOnTagValue(FileList *fileSet,
+                                       uint16_t group, uint16_t element);
+              </TT><br>
+           These methods must be called by user, depending on what he wants 
+           to do, at application time.- *he* only  knows what his Series 
+           contain !-
+      <LI> To avoid memory leaks and seg faults the user intended classes
+           use now a Reference Counter.<br>
+      <UL>
+         <LI> <TT>new()</TT> and <TT>delete()</TT> are replaced by
+              <TT>New()</TT> and <TT>Delete()</TT>
+         <LI> <TT>Register()</TT> and <TT>Unregister()</TT> methods are 
+         available.
+         <LI> --> Well ... People from ITK don't seem to agree too much with 
+             that feature.<br>
+          They demand to be allowed to allocate gdcm objects in the stack as
+          well, not only in the heap.
+      </UL>
+      <LI>
+   </UL>
+
+   <LI> API breaking modifications (since previous version)
+   <UL>
+      <LI> Stupid difference between <TT>gdcm::ValEntry</TT> 
+           and <TT>gdcm::BinEntry</TT> removed. <br>
+           Only <TT>gdcm::DataEntry</TT> exist, now. <br>  
+   <pre>
+   ValEntry(DictEntry *e);
+   BinEntry(DictEntry *e);
+-->DataEntry *New(uint16_t group,uint16_t elem, VRKey const &vr);
+
+   std::string const &ValEntry::GetValue() const;
+   std::string const &BinEntry::GetValue() const;
+-->std::string const &DataEntry::GetString() const;
+
+   uint8_t *BinEntry::GetBinArea();
+-->uint8_t *DataEntry::GetBinArea();
+
+   void ValEntry::SetValue(std::string const &value);
+   void BinEntry::SetValue(std::string const &value);   
+-->void DataEntry::SetString(std::string const &value);
+
+   void BinEntry::SetBinArea( uint8_t *area, bool self = true );
+-->void DataEntry::SetBinArea( uint8_t *area, bool self = true );
+
+   void ValEntry::CopyValEntry(uint16_t gr, uint16_t el);
+-->void DataEntry::CopyDataEntry(uint16_t gr, uint16_t el, VRKey const &vr);
+</pre>
+
+<pre>
+Example :
+
+old way :
+        DocEntry *p3 = item2->GetDocEntry(0x0018,0x0050);
+        if( !p3 ) return false;
+        ContentEntry *entry2 = dynamic_cast<ContentEntry *>(p3);
+        std::string thickness = entry2->GetValue();
+
+new way :
+        DocEntry *p3 = item2->GetDocEntry(0x0018,0x0050);
+        if( !p3 ) return false;
+        DataEntry *entry2 = dynamic_cast<DataEntry *>(p3);
+        std::string thickness = entry2->GetString();
+
+</pre>
+
+<LI> Avoid tons of CPU time consuming accesses to DICOM Dictionnary
+<pre>
+   DataEntry *FileHelper::CopyDataEntry(uint16_t group, uint16_t elem);
+-->DataEntry *FileHelper::CopyDataEntry(uint16_t group, uint16_t elem, 
+                                        const VRKey &vr = GDCM_VRUNKNOWN);
+
+   void FileHelper::CheckMandatoryEntry(uint16_t group, uint16_t elem, std::string value);
+-->void FileHelper::CheckMandatoryEntry(uint16_t group, uint16_t elem, std::string value,
+                                        const VRKey &vr = GDCM_VRUNKNOWN);
+      
+   void FileHelper::SetMandatoryEntry(uint16_t group, uint16_t elem, std::string value);       
+-->void FileHelper::SetMandatoryEntry(uint16_t group, uint16_t elem, std::string value,
+                                      const VRKey &vr = GDCM_VRUNKNOWN);
+
+   void FileHelper::CopyMandatoryEntry(uint16_t group, uint16_t elem, std::string value);      
+-->void FileHelper::CopyMandatoryEntry(uint16_t group, uint16_t elem, std::string value,
+                                       const VRKey &vr = GDCM_VRUNKNOWN);
+</pre>
+CopyMandatoryEntry(0x0002,0x0003,sop)
+<LI> New features :
+<pre>
+For multivaluated numeric DataEntries
+-->void DataEntry::SetValue(const uint32_t &id,const double &val);
+-->double DataEntry::GetValue(const uint32_t &id) const;
+-->uint32_t DataEntry::GetValueCount() const;
+
+For converting 'Decimal String'
+-->bool GetDSValue(std::vector &lt;double&gt; &valueVector);  
+      </pre>
+      <LI>
+   </UL> 
+      
+   <LI> Bug fixes
+   <UL>
+      <LI> Implicit VR - Big Endian (G.E Private) Transfert Syntax 16 Bits 
+           images are now read correctly.  
+      <LI> File::GetZOrigin() returns accurate result in any case.
+      <LI>
+      <LI>
+   </UL>
+   
+   <LI> Known Bugs
+   <UL>
+      <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 ...
+      <LI> Troubles on 'Big endian' processors (i.e. Apple/Motorola, SunSparc
+           ...) when writting 16 Bits images.
+      <LI> Troubles on 64-bits processors.
+      <LI>
       <LI>
    </UL>
+ 
+      <br><br>
+ </UL>
+
+
+  
+<!#######################################################################>
+<A CLASS="anchor" NAME="NewsPreviousVersions">
+<!#######################################################################>
 
+<HR size="1"><ADDRESS style="align: right;"></ADDRESS>
+<H2>
+   <A CLASS="anchor" NAME="NewsVersion1_1">
+      <B>Version 1.1 (September 14 2005)</B></A>   
+</H2> 
+   <LI>State of the art
+   <UL>
+      <LI>
+         <a href="Doc1.0/uml-gdcmV1.0.pdf">gdcm 1.1 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> 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<br><br>
+      <LI> Add the methods
+         <TT>gdcm::Dict:AddDict(std::string fullPathPrivateDictionaryFileName)</TT>
+        <br>and<br> 
+        <TT>gdcm::Dict::RemoveDict(std::string fullPathPrivateDictionaryFileName)</TT>
+        <br>
+        to allow user to choose the 'Private Dictionary' he wants to work with.
+        <br>
+        One can dream about a better API;<br>
+        This one allow right now anybody to see very easyly if the use 
+        of a given private dicom dictionary is of any help or not.
+        <br><br>
+      <LI>
+      <TT>PrintFile</TT> has now a new command line argument manager option :<br>
+          <TT>dict=fullPathNamePrivateDictionaryFile</TT><br>
+          to allow user to see with no extra coding what differences 
+          makes the use or not of a private Dicom Dictionary.<br>
+          e.g. : use it as follow <br>
+          <TT>PrintFile filein=myGEdicomFile.dcm 
+          dict=/user/userName/gdcm/Dicts/GEMS-Advance.dic</TT>
+          <br><br> 
+      <LI>
+          (Not a great one ...)  
+          Stupid method names : <br><TT>DicomDir::WriteDicomDir()</TT>
+          and <TT>DicomDir::AnonymizeDicomDir()</TT> <br>replaced by : <br>
+          <TT>DicomDir::Write()</TT>
+          and <TT>DicomDir::Anonymize()</TT>
+          <br><br> 
+      <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 *knows* how to order his files
+        sh->SetUserLessThanFunction(userSuppliedComparisonFunction);
+   //      or/and
+   //      if user wants to sort reverse order
+        sh->SetSortOrderToReverse();
+   
+   //      here, we suppose only the first 'Single SerieUID' Fileset is of interest
+   //      Just iterate using sh->NextSingleSerieUIDFileSet()
+   //      if you want to get all of them
+        gdcm::FileList *l = sh->GetFirstSingleSerieUIDFileSet();
+
+   //      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 'Single SerieUID' Fileset 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>
+           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<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
@@ -140,7 +505,7 @@ Any contribution is welcome.
            d->Load( );  
            </pre>
  
-           For parsing all the dicom files with a given root directory, use :<br>
+           For parsing all the dicom files within a given root directory, use :<br>
            <pre>
            gdcm::DicomDir *d = new gdcm::DicomDir();
            d->SetDirectoryName(dirName);
@@ -155,15 +520,17 @@ Any contribution is welcome.
            </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>
-            <pre>
-            gdcm::File *f = new gdcm::File();
+           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>
+           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
@@ -176,23 +543,24 @@ Any contribution is welcome.
             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> 
-            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
-            use : <br>
-            <pre>
-            gdcm::DicomDir *f = new gdcm::DicomDir();
+             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();
                   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( );
+             f->SetDirectoryName(rootDirectoryName);
+             f->Load( );
             </pre>
             <b>Don't</b> use any longer old deprecated style: <br>
             <TT>
@@ -202,32 +570,32 @@ Any contribution is welcome.
 
    <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
            <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>)
    <UL>    
       <LI> NEVER more API breaking modifications !!!
-
+      <br><br>
    </UL>
 
    <LI> Known bugs
    <UL>
-      <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>