VTK 实例41：高斯平滑（图像光滑）

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 <vtkImageGaussianSmooth.h> 8 #include <vtkRenderWindoh> 9 #include <vtkRenderWindowInteractor.h> 10 #include <vtkInteractorStyleImage.h> 11 #include <vtkRenderer.h> 12 #include <vtkImageActor.h> 13 #include <vtkImageEllipsoidSource.h> 14 #include <vtkImageCast.h> 15 #include <vtkJPEGReader.h> 16 17 //测试图像：../data/lenagray.jpg 18 int main(int argc, char* argv[]) 19 ; 42 double smoothedViewport[4] = ; 43 44 vtkSmartPointer<vtkRenderer> originalRenderer = 45 vtkSmartPointer<vtkRenderer>::New(); 46 originalRenderer>SetViewport(originalViewport); 47 originalRenderer>AddActor(originalActor); 48 originalRenderer>ResetCamera(); 49 originalRenderer>SetBackground(1.0, 1.0, 1.0); 50 51 vtkSmartPointer<vtkRenderer> gradientMagnitudeRenderer = 52 vtkSmartPointer<vtkRenderer>::New(); 53 gradientMagnitudeRenderer>SetViewport(smoothedViewport); 54 gradientMagnitudeRenderer>AddActor(smoothedActor); 55 gradientMagnitudeRenderer>ResetCamera(); 56 gradientMagnitudeRenderer>SetBackground(1.0, 1.0, 1.0); 57 58 vtkSmartPointer<vtkRenderWindow> renderWindow = 59 vtkSmartPointer<vtkRenderWindow>::New(); 60 renderWindow>AddRenderer(originalRenderer); 61 renderWindow>AddRenderer(gradientMagnitudeRenderer); 62 renderWindow>SetSize(640, 320); renderWindow>Render(); 64 renderWindow>SetWindowName("GaussianFilterExample"); 65 66 vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor = 67 vtkSmartPointer<vtkRenderWindowInteractor>::New(); 68 vtkSmartPointer<vtkInteractorStyleImage> style = 69 vtkSmartPointer<vtkInteractorStyleImage>::New(); 70 71 renderWindowInteractor>SetInteractorStyle(style); 72 renderWindowInteractor>SetRenderWindow(renderWindow); 73 renderWindowInteractor>Initialize(); 74 renderWindowInteractor>Start(); 75 76 return EXIT_SUCCESS; 77 }

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