ShotNoise

VTKExamples/Cxx/ImageProcessing/ShotNoise

Code

ShotNoise.cxx

#include <vtkSmartPointer.h>
#include <vtkImageCanvasSource2D.h>
#include <vtkPNGWriter.h>

int main (int argc, char *argv[])
{
  vtkSmartPointer<vtkImageCanvasSource2D> imageCanvas =
    vtkSmartPointer<vtkImageCanvasSource2D>::New();

  imageCanvas->SetScalarTypeToUnsignedChar();
  imageCanvas->SetExtent(1, 256, 1, 256, 0, 0);
  imageCanvas->SetDrawColor(0.0);
  imageCanvas->FillBox(1, 256, 1, 256);
  imageCanvas->SetDrawColor(255.0);
  imageCanvas->FillBox(30, 225, 30, 225);
  imageCanvas->SetDrawColor(0.0);
  imageCanvas->FillBox(60, 195, 60, 195);
  imageCanvas->SetDrawColor(255.0);
  imageCanvas->FillTube(100, 100, 154, 154, 40.0);
  imageCanvas->SetDrawColor(0.0);
  imageCanvas->DrawSegment(45, 45, 45, 210);
  imageCanvas->DrawSegment(45, 210, 210, 210);
  imageCanvas->DrawSegment(210, 210, 210, 45);
  imageCanvas->DrawSegment(210, 45, 45, 45);
  imageCanvas->DrawSegment(100, 150, 150, 100);
  imageCanvas->DrawSegment(110, 160, 160, 110);
  imageCanvas->DrawSegment(90, 140, 140, 90);
  imageCanvas->DrawSegment(120, 170, 170, 120);
  imageCanvas->DrawSegment(80, 130, 130, 80);
  imageCanvas->Update();

  vtkSmartPointer<vtkPNGWriter> writer =
    vtkSmartPointer<vtkPNGWriter>::New();
  writer->SetInputConnection(imageCanvas->GetOutputPort());
  writer->SetFileName(argv[1]);
  writer->Write();
  return EXIT_SUCCESS;
  }

CMakeLists.txt

cmake_minimum_required(VERSION 2.8)

PROJECT(ShotNoise)

find_package(VTK REQUIRED)
include(${VTK_USE_FILE})

add_executable(ShotNoise MACOSX_BUNDLE ShotNoise.cxx )

target_link_libraries(ShotNoise ${VTK_LIBRARIES})

Download and Build ShotNoise

Click here to download ShotNoise and its CMakeLists.txt file. Once the tarball ShotNoise.tar has been downloaded and extracted,

cd ShotNoise/build 

If VTK is installed:

cmake ..

If VTK is not installed but compiled on your system, you will need to specify the path to your VTK build:

cmake -DVTK_DIR:PATH=/home/me/vtk_build ..

Build the project:

make

and run it:

./ShotNoise

WINDOWS USERS

Be sure to add the VTK bin directory to your path. This will resolve the VTK dll's at run time.