VTK 实例39：拉普拉斯算子（边缘检测）

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 <vtkImageCanvasSource2D.h> 8 #include <vtkImageShiftScale.h> 9 #include <vtkRenderWindoh> 10 #include <vtkRenderWindowInteractor.h> 11 #include <vtkInteractorStyleImage.h> 12 #include <vtkRenderer.h> 13 #include <vtkImageActor.h> 14 #include <vtkJPEGReader.h> 15 #include <vtkImageLaplacian.h> 16 17 //测试图像：../data/lenagray.jpg 18 int main(int argc, char* argv[]) 19 ; 50 double gradviewport[4] = ; 51 52 vtkSmartPointer<vtkRenderer> originalRenderer = 53 vtkSmartPointer<vtkRenderer>::New(); 54 originalRenderer>SetViewport(originalViewport); 55 originalRenderer>AddActor(originalActor); 56 originalRenderer>ResetCamera(); 57 originalRenderer>SetBackground(1.0, 1.0, 1.0); 58 59 vtkSmartPointer<vtkRenderer> gradRenderer = 60 vtkSmartPointer<vtkRenderer>::New(); 61 gradRenderer>SetViewport(gradviewport); 62 gradRenderer>AddActor(gradActor); gradRenderer>ResetCamera(); 64 gradRenderer>SetBackground(1.0, 1.0, 1.0); 65 66 vtkSmartPointer<vtkRenderWindow> renderWindow = 67 vtkSmartPointer<vtkRenderWindow>::New(); 68 renderWindow>AddRenderer(originalRenderer); 69 renderWindow>AddRenderer(gradRenderer); 70 renderWindow>SetSize(640, 320); 71 renderWindow>Render(); 72 renderWindow>SetWindowName("LaplacianExample"); 73 74 vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor = 75 vtkSmartPointer<vtkRenderWindowInteractor>::New(); 76 vtkSmartPointer<vtkInteractorStyleImage> style = 77 vtkSmartPointer<vtkInteractorStyleImage>::New(); 78 79 renderWindowInteractor>SetInteractorStyle(style); 80 renderWindowInteractor>SetRenderWindow(renderWindow); 81 renderWindowInteractor>Initialize(); 82 renderWindowInteractor>Start(); 83 84 return EXIT_SUCCESS; 85 }

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