https://www.slicer.org/w/api.php?action=feedcontributions&feedformat=atom&user=Scottg 2026-04-07T10:37:19Z User contributions MediaWiki 1.33.0 https://www.slicer.org/w/index.php?title=Documentation/Nightly/FAQ/Scripting&diff=30870 2013-03-01T18:02:30Z

<p>Scottg: /* How to grab full slice image ? */</p> <hr /> <div>&lt;noinclude&gt;__TOC__<br /> ={{#titleparts: {{PAGENAME}} | | -1 }}=&lt;/noinclude&gt;&lt;includeonly&gt;<br /> ='''User FAQ: {{{1}}}'''=<br /> &lt;/includeonly&gt;<br /> <br /> == How to grab full slice image (+-volume, +-model) ? ==<br /> <br /> === A Few General Approaches ===<br /> <br /> There are multiple ways to access image data from one or all of the slice views. <br /> <br /> ==== VTK Window to Image Function (vtk.vtkWindowToImageFilter() ====<br /> <br /> : # Example to grab image from red slice view and output as TIF<br /> <br /> : lm = slicer.app.layoutManager()<br /> : redWidget = lm.sliceWidget('Red')<br /> : redView = redWidget.sliceView() <br /> : wti = vtk.vtkWindowToImageFilter()<br /> : wti.SetInput(redView.renderWindow())<br /> : wti.Update()<br /> : w = vtk.vtkTIFFWriter()<br /> : w.SetInputConnection(wti.GetOutputPort())<br /> : w.SetFileName('tmp/test.tif')<br /> : w.Write()<br /> <br /> ==== Direct access to widget data using ====<br /> <br /> : # Example grabs image from red slice view and outputs as PNG<br /> <br /> : lm = slicer.app.layoutManager()<br /> : redWidget = lm.sliceWidget('Red')<br /> : im = redWidget.imageData()<br /> : w = vtk.vtkPNGWriter()<br /> : w.SetInput(im)<br /> : w.SetFileName('tmp/test.png')<br /> : w.Write()<br /> <br /> <br /> ==== QImages using the qt.QPixmap.grabWidget function ====<br /> <br /> : # example to grab all views and store in 'image'<br /> image = qt.QPixmap.grabWidget(slicer.util.mainWindow()).toImage()<br /> <br /> : # example to grab 3d view, store in tdv, then output as a png image file<br /> tdv = lm.threeDWidget(0).threeDView()<br /> qt.QPixmap().grabWidget(tdv).toImage().save('/tmp/test.png')<br /> <br /> === Notes ===<br /> <br /> This is also useful for slicing up whatever is shown (eg. voxelizing model data) by iterating this over the dimensions of the volume/model <br /> <br /> In order to view models in the slice view make sure to activate the &quot;Slice Intersections Visible&quot; property of the model<br /> <br /> <br /> === Specific Example ===<br /> <br /> The following script iterates through the red slice view and outputs each slice as a .png image. <br /> It was originally designed to output volume+model data together slice-by-slice<br /> <br /> : https://gist.github.com/gortscizz/5060517</div>

Scottg