[vtkusers] 3D reconstruction using 2d tiff images
Ioannis Conou
ioannisconou at gmail.com
Sun Jun 15 12:32:45 EDT 2008
Hi, vtk users.
I have a question in terms of 3D reconstruction using 2d tiff images.
I have 30 serial rat brain section images(RGB) size (512x512). I
rename them (t8a.0,t8a.01, t8a.02-----t8a.30) and I tried to load
these 30 images and reconstruct a 3D structure.
When I render, I only see just background in rendering window. There
is nothing in my rendering window and I get this
ERROR: In ..\..\vtk\IO\vtkTIFFReader.cxx, line 178
vtkTIFFReader (03D76AE8): Unable to open file C:\Data\3Daxial\.0
This is Java code what I used.
vtkRenderer ren1 = new vtkRenderer();
vtkRenderWindow renWin = new vtkRenderWindow();
renWin.AddRenderer(ren1);
vtkRenderWindowInteractor iren = new vtkRenderWindowInteractor();
iren.SetRenderWindow(renWin);
vtkLight lgt = new vtkLight();
vtkMergePoints locator = new vtkMergePoints();
locator.SetDivisions(32, 32, 46); //(32,32,46)
locator.RetainCellListsOff();
locator.SetNumberOfPointsPerBucket(2);
locator.AutomaticOff();
vtkTIFFReader reader = new vtkTIFFReader();
reader.SetFilePrefix("C:\\Data\\3Daxial\\");
vtkImageShrink3D mask = new vtkImageShrink3D();
mask.SetInput(reader.GetOutput());
mask.SetShrinkFactors(5, 5, 5);
vtkMarchingCubes iso = new vtkMarchingCubes();
iso.SetInput(mask.GetOutput());
iso.SetValue(0, 150); //(0,150)
iso.ComputeGradientsOn();
iso.ComputeScalarsOff();
iso.SetLocator(locator);
vtkVectorNorm gradient = new vtkVectorNorm();
gradient.SetInput(iso.GetOutput());
vtkDataSetMapper isoMapper = new vtkDataSetMapper();
isoMapper.SetInput(gradient.GetOutput());
isoMapper.ScalarVisibilityOn();
isoMapper.SetScalarRange(0, 600); //(0,300)
isoMapper.ImmediateModeRenderingOn();
vtkActor isoActor = new vtkActor();
isoActor.SetMapper(isoMapper);
isoActor.GetProperty().SetColor(100, 100, 100);
vtkOutlineFilter outline = new vtkOutlineFilter();
outline.SetInput(reader.GetOutput());
vtkPolyDataMapper outlineMapper = new vtkPolyDataMapper();
outlineMapper.SetInput(outline.GetOutput());
vtkActor outlineActor = new vtkActor();
outlineActor.SetMapper(outlineMapper);
ren1.AddActor(outlineActor);
ren1.AddActor(isoActor);
ren1.AddLight(lgt);
renWin.SetSize(1000, 1000);
ren1.SetBackground(0, 0, 0.4);
vtkCamera cam1 = ren1.GetActiveCamera();
cam1.Elevation(600);
cam1.SetViewUp(0, 0, 1.0);
cam1.Zoom(0.5);
cam1.SetDistance(300);
lgt.SetPosition(cam1.GetPosition());
lgt.SetFocalPoint(cam1.GetFocalPoint());
ren1.ResetCameraClippingRange();
renWin.Render();
iren.Start();
I haven't got much experience in VTK.
Is there anybody who can help me.... Please.
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