1 #include "vtkAutoInit.h"
2 VTK_MODULE_INIT(vtkRenderingOpenGL2);
3 VTK_MODULE_INIT(vtkInteractionStyle);
4
5 #include <vtkSmartPointer.h>
6 #include <vtkImageData.h>
7 #include <vtkImageShiftScale.h>
8 #include <vtkRenderWindow.h>
9 #include <vtkRenderWindowInteractor.h>
10 #include <vtkInteractorStyleImage.h>
11 #include <vtkRenderer.h>
12 #include <vtkImageActor.h>
13 #include <vtkBMPReader.h>
14 #include <vtkImageShrink3D.h>
15
16 //测试图像：../data/lena.bmp
17 int main(int argc, char* argv[])
18 {
19 vtkSmartPointer<vtkBMPReader> reader =
20 vtkSmartPointer<vtkBMPReader>::New();
21 reader->SetFileName("lena.bmp");
22 reader->Update();
23
24 vtkSmartPointer<vtkImageShrink3D> shrinkFilter =
25 vtkSmartPointer<vtkImageShrink3D>::New();
26 shrinkFilter->SetInputConnection(reader->GetOutputPort());
27 shrinkFilter->SetShrinkFactors(20,20,1);
28 shrinkFilter->Update();
29
30 int originalDims[3];
31 reader->GetOutput()->GetDimensions(originalDims);
32
33 double originalSpace[3];
34 reader->GetOutput()->GetSpacing(originalSpace);
35
36 int shrinkDims[3];
37 shrinkFilter->GetOutput()->GetDimensions(shrinkDims);
38
39 double shrinkSpace[3];
40 shrinkFilter->GetOutput()->GetSpacing(shrinkSpace);
41
42 std::cout<<"原图图像维数 ："<<originalDims[0] << " "<<originalDims[1]<<" "<<originalDims[2]<<std::endl;
43 std::cout<<"原图图像像素间隔 ："<<originalSpace[0] << " "<<originalSpace[1]<<" "<<originalSpace[2]<<std::endl;
44 std::cout<<"重采样图像维数 ："<<shrinkDims[0] << " "<<shrinkDims[1]<<" "<<shrinkDims[2]<<std::endl;
45 std::cout<<"重采样图像像素间隔："<<shrinkSpace[0] << " "<<shrinkSpace[1]<<" "<<shrinkSpace[2]<<std::endl;
46
47 vtkSmartPointer<vtkImageActor> originalActor =
48 vtkSmartPointer<vtkImageActor>::New();
49 originalActor->SetInputData( reader->GetOutput());
50
51 vtkSmartPointer<vtkImageActor> shrinkActor =
52 vtkSmartPointer<vtkImageActor>::New();
53 shrinkActor->SetInputData(shrinkFilter->GetOutput());
54
55 double originalViewport[4] = {0.0, 0.0, 0.5, 1.0};
56 double shrinkViewport[4] = {0.5, 0.0, 1.0, 1.0};
57
58 vtkSmartPointer<vtkRenderer> originalRenderer =
59 vtkSmartPointer<vtkRenderer>::New();
60 originalRenderer->SetViewport(originalViewport);
61 originalRenderer->AddActor(originalActor);
62 originalRenderer->ResetCamera();
63 originalRenderer->SetBackground(1.0, 1.0, 1.0);
64
65 vtkSmartPointer<vtkRenderer> shrinkRenderer =
66 vtkSmartPointer<vtkRenderer>::New();
67 shrinkRenderer->SetViewport(shrinkViewport);
68 shrinkRenderer->AddActor(shrinkActor);
69 shrinkRenderer->ResetCamera();
70 shrinkRenderer->SetBackground(1.0, 1.0, 1.0);
71
72 vtkSmartPointer<vtkRenderWindow> renderWindow =
73 vtkSmartPointer<vtkRenderWindow>::New();
74 renderWindow->AddRenderer(originalRenderer);
75 renderWindow->AddRenderer(shrinkRenderer);
76 renderWindow->SetSize(640, 480);
77 renderWindow->Render();
78 renderWindow->SetWindowName("ImageShrink3DExample");
79
80 vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor =
81 vtkSmartPointer<vtkRenderWindowInteractor>::New();
82 vtkSmartPointer<vtkInteractorStyleImage> style =
83 vtkSmartPointer<vtkInteractorStyleImage>::New();
84
85 renderWindowInteractor->SetInteractorStyle(style);
86 renderWindowInteractor->SetRenderWindow(renderWindow);
87 renderWindowInteractor->Initialize();
88 renderWindowInteractor->Start();
89
90 return EXIT_SUCCESS;
91 }
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