David, this leads me to another question. Looking at file raster_wrangler.py in lib/paraview-5.1/site-packages/paraview/cinemaIO, one tries to import PIL. However, even though numpy is provided by the SuperBuild, PIL is not. So I guess that I have to compile my own version of Python including PIL and pass it to the SuperBuild as system python installation. Is my assumption correct? Or have I been missing something? Cheers,
Frank. From: ParaView [mailto:paraview-boun...@paraview.org] On Behalf Of Albina, Frank Sent: Mittwoch, 12. Oktober 2016 20:01 To: David E DeMarle Cc: Del Citto, Francesco; paraview@paraview.org Subject: Re: [Paraview] Paraview python script: passing images to PIL (python image library) David, that’s excellent. Thanks a lot. Frank. From: David E DeMarle [mailto:dave.dema...@kitware.com] Sent: Mittwoch, 12. Oktober 2016 19:56 To: Albina, Frank Cc: paraview@paraview.org<mailto:paraview@paraview.org>; Del Citto, Francesco Subject: Re: [Paraview] Paraview python script: passing images to PIL (python image library) Look into the cinemaIO directory of ParaView. We move back and forth between paraview, numpy and PIL often there. For example: image = self.view.CaptureWindow(1) ext = image.GetExtent() width = ext[1] - ext[0] + 1 height = ext[3] - ext[2] + 1 imagescalars = image.GetPointData().GetScalars() idata = numpy_support.vtk_to_numpy(imagescalars) image.UnRegister(None) imageslice = idata.reshape(height, width, 3) imageslice = numpy.flipud(imageslice) pimg = PIL.Image.fromarray(imageslice) David E DeMarle Kitware, Inc. R&D Engineer 21 Corporate Drive Clifton Park, NY 12065-8662 Phone: 518-881-4909<tel:518-881-4909> On Wed, Oct 12, 2016 at 1:42 PM, Albina, Frank <frank.alb...@sauber-motorsport.com<mailto:frank.alb...@sauber-motorsport.com>> wrote: All, A simple question: my incentive is to manipulate images using PIL in a pvbatch script. At the time being, I am writing the images to file in PNG format and reading the file again from disc using PIL. I have found out that the underlying image writing is performed by the vtkPNGWriter class and that this class allows to write to memory (vtkPNGWriter.SetWriteToMemory). Hence my question: Is it possible to “write” a PNG file to memory so that I can process it further using PIL? If so, how shall I proceed? Thank you very much in advance. Cheers, Frank. _______________________________________________ Powered by www.kitware.com<http://www.kitware.com> Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView Search the list archives at: http://markmail.org/search/?q=ParaView Follow this link to subscribe/unsubscribe: http://public.kitware.com/mailman/listinfo/paraview
_______________________________________________ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView Search the list archives at: http://markmail.org/search/?q=ParaView Follow this link to subscribe/unsubscribe: http://public.kitware.com/mailman/listinfo/paraview
