<div dir="ltr"><p style="margin:0px 0px 1em;padding:0px;border:0px;font-size:14px;vertical-align:baseline;clear:both;color:rgb(0,0,0);font-family:Arial,'Liberation Sans','DejaVu Sans',sans-serif;line-height:18px">
Hi,</p><p style="margin:0px 0px 1em;padding:0px;border:0px;font-size:14px;vertical-align:baseline;clear:both;color:rgb(0,0,0);font-family:Arial,'Liberation Sans','DejaVu Sans',sans-serif;line-height:18px">
I'm working on an IO plugin for ITK to read and write in-house image file formats. I did everything as described in the wiki <a href="http://www.itk.org/Wiki/Plugin_IO_mechanisms" rel="nofollow" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent;color:rgb(74,107,130);text-decoration:none">here</a>.<br>
</p><p style="margin:0px 0px 1em;padding:0px;border:0px;font-size:14px;vertical-align:baseline;clear:both;color:rgb(0,0,0);font-family:Arial,'Liberation Sans','DejaVu Sans',sans-serif;line-height:18px">I did everything by the book, put the dynamic library in the <code style="margin:0px;padding:1px 5px;border:0px;vertical-align:baseline;background-color:rgb(238,238,238);font-family:Consolas,Menlo,Monaco,'Lucida Console','Liberation Mono','DejaVu Sans Mono','Bitstream Vera Sans Mono','Courier New',monospace,serif;white-space:pre-wrap">ITK_AUTOLOAD_PATH</code> and set the <code style="margin:0px;padding:1px 5px;border:0px;vertical-align:baseline;background-color:rgb(238,238,238);font-family:Consolas,Menlo,Monaco,'Lucida Console','Liberation Mono','DejaVu Sans Mono','Bitstream Vera Sans Mono','Courier New',monospace,serif;white-space:pre-wrap">ITK_AUTOLOAD_PATH</code> environment variable.</p>
<p style="margin:0px 0px 1em;padding:0px;border:0px;font-size:14px;vertical-align:baseline;clear:both;color:rgb(0,0,0);font-family:Arial,'Liberation Sans','DejaVu Sans',sans-serif;line-height:18px">The library builds successfully, but when I try to read a file with the in-house format (with ImageReadExportVTK from the examples), I get this error message:</p>
<pre class="" style="margin-top:0px;margin-bottom:10px;padding:5px;border:0px;font-size:14px;vertical-align:baseline;background-color:rgb(238,238,238);font-family:Consolas,Menlo,Monaco,'Lucida Console','Liberation Mono','DejaVu Sans Mono','Bitstream Vera Sans Mono','Courier New',monospace,serif;overflow:auto;width:auto;max-height:600px;word-wrap:normal;color:rgb(0,0,0);line-height:18px">
<code style="margin:0px;padding:0px;border:0px;vertical-align:baseline;font-family:Consolas,Menlo,Monaco,'Lucida Console','Liberation Mono','DejaVu Sans Mono','Bitstream Vera Sans Mono','Courier New',monospace,serif;white-space:inherit"><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent;color:rgb(43,145,175)">ExceptionObject</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">:</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent"> </span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent;color:rgb(43,145,175)">Command</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent"> not found</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">.</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">

itk</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">::</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent;color:rgb(43,145,175)">ImageFileReaderException</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent"> </span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">(</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent;color:rgb(128,0,0)">0x7feab10f4eb8</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">)</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">
</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent;color:rgb(43,145,175)">Location</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">:</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent"> </span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent;color:rgb(128,0,0)">"virtual void itk::ImageFileReader<itk::Image<unsigned char, 3>, itk::DefaultConvertPixelTraits<unsigned char> >::GenerateOutputInformation() [TOutputImage = itk::Image<unsigned char, 3>, ConvertPixelTraits = itk::DefaultConvertPixelTraits<unsigned char>]"</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent"> 
</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent;color:rgb(43,145,175)">File</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">:</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent"> </span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">/</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">people</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">/</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">seidel</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">/</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">ITK src</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">/</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent;color:rgb(43,145,175)">InsightToolkit</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">-</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent;color:rgb(128,0,0)">4.2</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">.</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent;color:rgb(128,0,0)">1</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">/</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent;color:rgb(43,145,175)">Modules</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">/</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">IO</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">/</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent;color:rgb(43,145,175)">ImageBase</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">/</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">include</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">/</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">itkImageFileReader</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">.</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">hxx
</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent;color:rgb(43,145,175)">Line</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">:</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent"> </span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent;color:rgb(128,0,0)">143</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">
</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent;color:rgb(43,145,175)">Description</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">:</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">  </span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent;color:rgb(43,145,175)">Could</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent"> not create IO object </span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent;color:rgb(0,0,139)">for</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent"> file little</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">.</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">lat

</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent;color:rgb(43,145,175)">Tried</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent"> to create one of the following</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">:</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">

</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent;color:rgb(43,145,175)">JPEGImageIO</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">
</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent;color:rgb(43,145,175)">GDCMImageIO</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">
</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent;color:rgb(43,145,175)">BMPImageIO</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">
</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent;color:rgb(43,145,175)">LSMImageIO</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">
</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent;color:rgb(43,145,175)">PNGImageIO</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">
</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent;color:rgb(43,145,175)">TIFFImageIO</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">
</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent;color:rgb(43,145,175)">VTKImageIO</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">
</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent;color:rgb(43,145,175)">StimulateImageIO</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">
</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent;color:rgb(43,145,175)">BioRadImageIO</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">
</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent;color:rgb(43,145,175)">MetaImageIO</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">
</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent;color:rgb(43,145,175)">NiftiImageIO</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">
</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent;color:rgb(43,145,175)">NrrdImageIO</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">
</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent;color:rgb(43,145,175)">GiplImageIO</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">
HDF5ImageIO
</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent;color:rgb(43,145,175)">You</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent"> probably failed to </span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent;color:rgb(43,145,175)">set</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent"> a file suffix</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">,</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent"> or
</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent;color:rgb(43,145,175)">set</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent"> the suffix to an unsupported type</span></code></pre>
<p style="margin:0px 0px 1em;padding:0px;border:0px;font-size:14px;vertical-align:baseline;clear:both;color:rgb(0,0,0);font-family:Arial,'Liberation Sans','DejaVu Sans',sans-serif;line-height:18px">However, if I put</p>
<pre class="" style="margin-top:0px;margin-bottom:10px;padding:5px;border:0px;font-size:14px;vertical-align:baseline;background-color:rgb(238,238,238);font-family:Consolas,Menlo,Monaco,'Lucida Console','Liberation Mono','DejaVu Sans Mono','Bitstream Vera Sans Mono','Courier New',monospace,serif;overflow:auto;width:auto;max-height:600px;word-wrap:normal;color:rgb(0,0,0);line-height:18px">
<code style="margin:0px;padding:0px;border:0px;vertical-align:baseline;font-family:Consolas,Menlo,Monaco,'Lucida Console','Liberation Mono','DejaVu Sans Mono','Bitstream Vera Sans Mono','Courier New',monospace,serif;white-space:inherit"><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">itk</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">::</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent;color:rgb(43,145,175)">ObjectFactoryBase</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">::</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent;color:rgb(43,145,175)">ReHash</span><span class="" style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">();</span></code></pre>
<p style="margin:0px 0px 1em;padding:0px;border:0px;font-size:14px;vertical-align:baseline;clear:both;color:rgb(0,0,0);font-family:Arial,'Liberation Sans','DejaVu Sans',sans-serif;line-height:18px">before the reader is instantiated, everything works fine. But after that, no default factories are loaded. As I understand the plugin mechanism correctly, calling <code style="margin:0px;padding:1px 5px;border:0px;vertical-align:baseline;background-color:rgb(238,238,238);font-family:Consolas,Menlo,Monaco,'Lucida Console','Liberation Mono','DejaVu Sans Mono','Bitstream Vera Sans Mono','Courier New',monospace,serif;white-space:pre-wrap">ReHash()</code> shouldn't be necessary.</p>
<p style="margin:0px 0px 1em;padding:0px;border:0px;font-size:14px;vertical-align:baseline;clear:both;color:rgb(0,0,0);font-family:Arial,'Liberation Sans','DejaVu Sans',sans-serif;line-height:18px">Can anybody point me in the right direction?</p>
<p style="margin:0px 0px 1em;padding:0px;border:0px;font-size:14px;vertical-align:baseline;clear:both;color:rgb(0,0,0);font-family:Arial,'Liberation Sans','DejaVu Sans',sans-serif;line-height:18px">I'm on Mac OS 10.8.5 with ITK 4.2.1.</p>
<p style="margin:0px 0px 1em;padding:0px;border:0px;font-size:14px;vertical-align:baseline;clear:both;color:rgb(0,0,0);font-family:Arial,'Liberation Sans','DejaVu Sans',sans-serif;line-height:18px">Thanks in advance.</p>
<p style="margin:0px 0px 1em;padding:0px;border:0px;font-size:14px;vertical-align:baseline;clear:both;color:rgb(0,0,0);font-family:Arial,'Liberation Sans','DejaVu Sans',sans-serif;line-height:18px">-Silvio</p>
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