VTK 实例26：将BMP类型的RGB图像转换为灰度图像

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 <vtkRenderWindoh> 8 #include <vtkRenderWindowInteractor.h> 9 #include <vtkInteractorStyleImage.h> 10 #include <vtkRenderer.h> 11 #include <vtkImageActor.h> 12 #include <vtkBMPReader.h> 13 #include <vtkImageLuminance.h> 14 15 //测试图像：../data/lena.bmp 16 int main(int argc, char* argv[]) 17 ; 36 double shiftscaleViewport[4] = ; 37 38 vtkSmartPointer<vtkRenderer> originalRenderer = 39 vtkSmartPointer<vtkRenderer>::New(); 40 originalRenderer>SetViewport(originalViewport); 41 originalRenderer>AddActor(originalActor); 42 originalRenderer>ResetCamera(); 43 originalRenderer>SetBackground(1.0, 1.0, 1.0); 44 45 vtkSmartPointer<vtkRenderer> shiftscaleRenderer = 46 vtkSmartPointer<vtkRenderer>::New(); 47 shiftscaleRenderer>SetViewport(shiftscaleViewport); 48 shiftscaleRenderer>AddActor(shiftscaleActor); 49 shiftscaleRenderer>ResetCamera(); 50 shiftscaleRenderer>SetBackground(1.0, 1.0, 1.0); 51 52 vtkSmartPointer<vtkRenderWindow> renderWindow = 53 vtkSmartPointer<vtkRenderWindow>::New(); 54 renderWindow>AddRenderer(originalRenderer); 55 renderWindow>AddRenderer(shiftscaleRenderer); 56 renderWindow>SetSize( 640, 320 ); 57 renderWindow>Render(); 58 renderWindow>SetWindowName("Color2GrayImageExample"); 59 60 vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor = 61 vtkSmartPointer<vtkRenderWindowInteractor>::New(); 62 vtkSmartPointer<vtkInteractorStyleImage> style = vtkSmartPointer<vtkInteractorStyleImage>::New(); 64 65 renderWindowInteractor>SetInteractorStyle(style); 66 renderWindowInteractor>SetRenderWindow(renderWindow); 67 renderWindowInteractor>Initialize(); 68 69 renderWindowInteractor>Start(); 70 71 return EXIT_SUCCESS; 72 }

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