VTK 实例45：理想低通滤波器（频域处理）

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 <vtkImageIdealLowPass.h> 8 #include <vtkImageActor.h> 9 #include <vtkRenderWindoh> 10 #include <vtkRenderWindowInteractor.h> 11 #include <vtkRenderer.h> 12 #include <vtkJPEGReader.h> 13 #include <vtkImageFFT.h> 14 #include <vtkImageRFFT.h> 15 #include <vtkImageExtractCponents.h> 16 #include <vtkImageCast.h> 17 18 //测试图像：../data/lenagray.jpg 19 int main(int argc, char* argv[]) 20 ; double rightViewport[4] = ; 64 65 vtkSmartPointer<vtkRenderWindow> renderWindow = 66 vtkSmartPointer<vtkRenderWindow>::New(); 67 renderWindow>SetSize(640, 320); 68 renderWindow>Render(); 69 renderWindow>SetWindowName("IdealLowPassExample"); 70 71 vtkSmartPointer<vtkRenderWindowInteractor> interactor = 72 vtkSmartPointer<vtkRenderWindowInteractor>::New(); 73 interactor>SetRenderWindow(renderWindow); 74 75 vtkSmartPointer<vtkRenderer> leftRenderer = 76 vtkSmartPointer<vtkRenderer>::New(); 77 renderWindow>AddRenderer(leftRenderer); 78 leftRenderer>SetViewport(leftViewport); 79 leftRenderer>SetBackground(1.0, 1.0, 1.0); 80 81 vtkSmartPointer<vtkRenderer> rightRenderer = 82 vtkSmartPointer<vtkRenderer>::New(); 83 renderWindow>AddRenderer(rightRenderer); 84 rightRenderer>SetViewport(rightViewport); 85 rightRenderer>SetBackground(1.0, 1.0, 1.0); 86 87 leftRenderer>AddActor(originalActor); 88 rightRenderer>AddActor(erodedActor); 89 90 leftRenderer>ResetCamera(); 91 rightRenderer>ResetCamera(); 92 93 renderWindow>Render(); 94 interactor>Start(); 95 96 return EXIT_SUCCESS; 97 }

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