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 <vtkImageConvolve.h>
8 #include <vtkImageMandelbrotSource.h>
9 #include <vtkRenderWindow.h>
10 #include <vtkRenderWindowInteractor.h>
11 #include <vtkInteractorStyleImage.h>
12 #include <vtkRenderer.h>
13 #include <vtkImageActor.h>
14 #include <vtkImageCast.h>
15 #include <vtkJPEGReader.h>
16 #include <vtkImageShiftScale.h>
17
18 //测试图像：../data/lena-gray.jpg
19 int main(int argc, char* argv[])
20 {
21 vtkSmartPointer<vtkJPEGReader> reader =
22 vtkSmartPointer<vtkJPEGReader>::New();
23 reader->SetFileName("lena-gray.jpg");
24 reader->Update();
25
26 vtkSmartPointer<vtkImageCast> originalCastFilter =
27 vtkSmartPointer<vtkImageCast>::New();
28 originalCastFilter->SetInputConnection(reader->GetOutputPort());
29 originalCastFilter->SetOutputScalarTypeToFloat();
30 originalCastFilter->Update();
31
32 vtkSmartPointer<vtkImageConvolve> convolveFilter =
33 vtkSmartPointer<vtkImageConvolve>::New();
34 convolveFilter->SetInputConnection(originalCastFilter->GetOutputPort());
35
36 double kernel[25] = {0.04,0.04,0.04,0.04,0.04,
37 0.04,0.04,0.04,0.04,0.04,
38 0.04,0.04,0.04,0.04,0.04,
39 0.04,0.04,0.04,0.04,0.04,
40 0.04,0.04,0.04,0.04,0.04 };
41 convolveFilter->SetKernel5x5(kernel);
42 convolveFilter->Update();
43
44 vtkSmartPointer<vtkImageCast> convCastFilter =
45 vtkSmartPointer<vtkImageCast>::New();
46 convCastFilter->SetInputData(convolveFilter->GetOutput());
47 convCastFilter->SetOutputScalarTypeToUnsignedChar();
48 convCastFilter->Update();
49
50 vtkSmartPointer<vtkImageActor> originalActor =
51 vtkSmartPointer<vtkImageActor>::New();
52 originalActor->SetInputData(reader->GetOutput());
53
54 vtkSmartPointer<vtkImageActor> convolvedActor =
55 vtkSmartPointer<vtkImageActor>::New();
56 convolvedActor->SetInputData(convCastFilter->GetOutput());
57
58 double leftViewport[4] = {0.0, 0.0, 0.5, 1.0};
59 double rightViewport[4] = {0.5, 0.0, 1.0, 1.0};
60
61 vtkSmartPointer<vtkRenderer> originalRenderer =
62 vtkSmartPointer<vtkRenderer>::New();
63 originalRenderer->SetViewport(leftViewport);
64 originalRenderer->AddActor(originalActor);
65 originalRenderer->SetBackground(1.0, 1.0, 1.0);
66 originalRenderer->ResetCamera();
67
68 vtkSmartPointer<vtkRenderer> convolvedRenderer =
69 vtkSmartPointer<vtkRenderer>::New();
70 convolvedRenderer->SetViewport(rightViewport);
71 convolvedRenderer->AddActor(convolvedActor);
72 convolvedRenderer->SetBackground(1.0, 1.0, 1.0);
73 convolvedRenderer->ResetCamera();
74
75 vtkSmartPointer<vtkRenderWindow> renderWindow =
76 vtkSmartPointer<vtkRenderWindow>::New();;
77 renderWindow->AddRenderer(originalRenderer);
78 renderWindow->AddRenderer(convolvedRenderer);
79 renderWindow->SetSize(640, 320);
80 renderWindow->Render();
81 renderWindow->SetWindowName("MeanFilterExample");
82
83 vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor =
84 vtkSmartPointer<vtkRenderWindowInteractor>::New();
85 vtkSmartPointer<vtkInteractorStyleImage> style =
86 vtkSmartPointer<vtkInteractorStyleImage>::New();
87
88 renderWindowInteractor->SetInteractorStyle(style);
89 renderWindowInteractor->SetRenderWindow(renderWindow);
90 renderWindowInteractor->Initialize();
91 renderWindowInteractor->Start();
92
93 return EXIT_SUCCESS;
94 }
