<div dir="ltr">Hi,<div><br></div><div>I've written code to flip an image in its X axis, it work fine but for some reason, the flipped image has its window levels changed...</div><div>Original image has WW 40 and WC 400 and the resulting image has WW -435 and WC 5178.</div><div><b>The images I'm trying are signed short Dicom files.</b></div><div>The original file has rescaleintercept -1024 and the resulting image has this value set to 0 which is also strange</div><div><br></div><div>Any reason why this happens?</div><div><br></div><div>Here's the code:</div><div><br></div><div><div>#include "itkImage.h"</div><div>#include "itkImageFileReader.h"</div><div>#include "itkImageFileWriter.h"</div><div>#include "itkFlipImageFilter.h"</div><div><br></div><div>int main(int argc, char* argv[])</div><div>{</div><div><span class="Apple-tab-span" style="white-space:pre">   </span>if (argc != 4)</div><div><span class="Apple-tab-span" style="white-space:pre">       </span>{</div><div><span class="Apple-tab-span" style="white-space:pre">            </span>std::cerr << "Usage: " << argv[0];</div><div><span class="Apple-tab-span" style="white-space:pre">             </span>std::cerr << " <InputFileName> <OutputFileName> <AxisToFlip>";</div><div><span class="Apple-tab-span" style="white-space:pre">             </span>std::cerr << std::endl;</div><div><span class="Apple-tab-span" style="white-space:pre">                </span>return EXIT_FAILURE;</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>}</div><div><br></div><div><span class="Apple-tab-span" style="white-space:pre">   </span>typedef itk::Image< signed short, 2 >  ImageType;</div><div><br></div><div><span class="Apple-tab-span" style="white-space:pre">    </span>typedef itk::ImageFileReader< ImageType >   ReaderType;</div><div><span class="Apple-tab-span" style="white-space:pre">       </span>ReaderType::Pointer reader = ReaderType::New();</div><div><span class="Apple-tab-span" style="white-space:pre">      </span>reader->SetFileName(argv[1]);</div><div><br></div><div><span class="Apple-tab-span" style="white-space:pre">    </span>typedef itk::FlipImageFilter< ImageType >   FlipImageFilterType;</div><div><br></div><div><span class="Apple-tab-span" style="white-space:pre">     </span>FlipImageFilterType::Pointer flipFilter = FlipImageFilterType::New();</div><div><br></div><div><span class="Apple-tab-span" style="white-space:pre">       </span>flipFilter->SetInput(reader->GetOutput());</div><div><br></div><div><span class="Apple-tab-span" style="white-space:pre">    </span>FlipImageFilterType::FlipAxesArrayType flipAxes;</div><div><span class="Apple-tab-span" style="white-space:pre">     </span>if (atoi(argv[3]) == 0)</div><div><span class="Apple-tab-span" style="white-space:pre">      </span>{</div><div><span class="Apple-tab-span" style="white-space:pre">            </span>flipAxes[0] = true;</div><div><span class="Apple-tab-span" style="white-space:pre">          </span>flipAxes[1] = false;</div><div><span class="Apple-tab-span" style="white-space:pre"> </span></div><div><span class="Apple-tab-span" style="white-space:pre">     </span>}</div><div><span class="Apple-tab-span" style="white-space:pre">    </span>else</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>{</div><div><span class="Apple-tab-span" style="white-space:pre">            </span>flipAxes[0] = false;</div><div><span class="Apple-tab-span" style="white-space:pre">         </span>flipAxes[1] = true;</div><div><span class="Apple-tab-span" style="white-space:pre">  </span></div><div><span class="Apple-tab-span" style="white-space:pre">     </span>}</div><div><br></div><div><span class="Apple-tab-span" style="white-space:pre">   </span>flipFilter->SetFlipAxes(flipAxes);</div><div><br></div><div><span class="Apple-tab-span" style="white-space:pre">       </span>typedef itk::ImageFileWriter< ImageType > WriterType;</div><div><span class="Apple-tab-span" style="white-space:pre">  </span>WriterType::Pointer writer = WriterType::New();</div><div><span class="Apple-tab-span" style="white-space:pre">      </span>writer->SetFileName(argv[2]);</div><div><span class="Apple-tab-span" style="white-space:pre">     </span>writer->SetInput(flipFilter->GetOutput());</div><div><span class="Apple-tab-span" style="white-space:pre">     </span></div><div><span class="Apple-tab-span" style="white-space:pre">     </span>try</div><div><span class="Apple-tab-span" style="white-space:pre">  </span>{</div><div><span class="Apple-tab-span" style="white-space:pre">            </span>writer->Update();</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>}</div><div><span class="Apple-tab-span" style="white-space:pre">    </span>catch (itk::ExceptionObject & error)</div><div><span class="Apple-tab-span" style="white-space:pre">     </span>{</div><div><span class="Apple-tab-span" style="white-space:pre">            </span>std::cerr << "Error: " << error << std::endl;</div><div><span class="Apple-tab-span" style="white-space:pre">            </span>return EXIT_FAILURE;</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>}</div><div><br></div><div><span class="Apple-tab-span" style="white-space:pre">   </span>return EXIT_SUCCESS;</div><div>}</div></div><div><br></div></div><div dir="ltr">-- <br></div><div dir="ltr">Matias</div>