VTK/Examples/Cxx/IO/JPEGReader

This example shows how to read a JPG image file.

JPEGReader.cxx

#include <vtkSmartPointer.h>
#include <vtkImageViewer2.h>
#include <vtkJPEGReader.h>
#include <vtkRenderWindow.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkRenderer.h>

int main(int argc, char* argv[])
{
  //Verify input arguments
  if ( argc != 2 )
    {
    std::cout << "Usage: " << argv[0]
              << " Filename(.jpeg)" << std::endl;
    return EXIT_FAILURE;
    }

  //Read the image
  vtkSmartPointer<vtkJPEGReader> jpegReader =
    vtkSmartPointer<vtkJPEGReader>::New();
  jpegReader->SetFileName ( argv[1] );

  // Visualize
  vtkSmartPointer<vtkImageViewer2> imageViewer =
    vtkSmartPointer<vtkImageViewer2>::New();
  imageViewer->SetInputConnection( jpegReader->GetOutputPort() );
  vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor =
    vtkSmartPointer<vtkRenderWindowInteractor>::New();
  imageViewer->SetupInteractor(renderWindowInteractor);
  imageViewer->Render();
  imageViewer->GetRenderer()->ResetCamera();
  imageViewer->Render();

  renderWindowInteractor->Start();

  return EXIT_SUCCESS;
}

Please try the new VTKExamples website.

CMakeLists.txt

cmake_minimum_required(VERSION 2.8)

PROJECT(JPEGReader)

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

add_executable(JPEGReader MACOSX_BUNDLE JPEGReader.cxx)

if(VTK_LIBRARIES)
  target_link_libraries(JPEGReader ${VTK_LIBRARIES})
else()
  target_link_libraries(JPEGReader vtkHybrid vtkWidgets)
endif()

Download and Build JPEGReader

Click here to download JPEGReader. and its CMakeLists.txt file.

Once the tarball JPEGReader.tar has been downloaded and extracted,

cd JPEGReader/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:

./JPEGReader

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