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Thanks for your reply. I also found out that if I first create a
vtkImageData object and pass it into vtkDICOMImageReader for it to use
as output, the vtkImageData object will retain itself when
vtkDICOMImageReader is deleted:<br>
<br>
vtkImageData* image = vtkImageData::New();<br>
reader.SetOutput(image);<br>
...<br>
<br>
Is this a safe way to do?<br>
<br>
Thanks!<br><br>Xiaofeng<br><br><br><br><br><hr id="stopSpelling">Date: Sun, 21 Mar 2010 13:11:50 +0900<br>Subject: Re: [vtkusers] How to extract vtkImageData from vtkDICOMImageReader<br>From: wangjunchen@gmail.com<br>To: xf10036@hotmail.com; vtkusers@vtk.org<br><br>because when you delete the reader, the imagedate(reader->GetOutput()) has a reference count 0 , so it is also recycled. <br>if you want to pertain the output of the reader, you can do either:<br>1. connect the output to the vtk pipeline<br>
or <br>2. vtkImageData * img = vtkImageData::New();<br> img->DeepCopy(reader->GetOutput());<br> reader->Delete();<br> // then you can access to the img...<br><br>
<div class="ecxgmail_quote">2010/3/21 Xiaofeng Z <span dir="ltr"><<a href="mailto:xf10036@hotmail.com">xf10036@hotmail.com</a>></span><br>
<blockquote style="border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;" class="ecxgmail_quote">
<div>Hello,<br><br>I use vtkDICOMImageReader to load a CT series:<br><br>vtkDICOMImageReader* reader = vtkDICOMImageReader::New();<br>reader.SetDirectoryName("...");<br>reader->Update();<br>vtkImageData* image = reader->GetOutput();<br>
<br>I was able to load the CT series without issue. The problem is as soon as I call reader::Delete(), the data in "image" appeared to be wiped out. Is there anyway to retain the vtkImageData object without having to keep the vtkDICOMImageReader object?<br>
<br>Thanks!<br><br>Xiaofeng Zhao<br>
<div class="ecxhm"><a href="http://www.xzing.org/"></a><br><br><br>
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