File: otbLineSegmentDetector.cxx

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/*
 * Copyright (C) 2005-2020 Centre National d'Etudes Spatiales (CNES)
 *
 * This file is part of Orfeo Toolbox
 *
 *     https://www.orfeo-toolbox.org/
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */


#include "otbLineSegmentDetector.h"

#include "otbImageFileReader.h"
#include "otbVectorDataFileWriter.h"
#include "otbImageFileWriter.h"


int otbLineSegmentDetector(int argc, char* argv[])
{
  const char* infname  = argv[1];
  const char* outfname = argv[2];

  /** Typedefs */
  typedef unsigned char                   PixelType;
  typedef otb::Image<PixelType>           ImageType;
  typedef otb::ImageFileReader<ImageType> ReaderType;
  typedef otb::LineSegmentDetector<ImageType, double> LSDFilterType;
  typedef LSDFilterType::VectorDataType             VectorDataType;
  typedef otb::VectorDataFileWriter<VectorDataType> VectorDataWriterType;
  typedef otb::ImageFileWriter<ImageType>           WriterType;

  /** Instantiation of smart pointer*/
  ReaderType::Pointer    reader    = ReaderType::New();
  LSDFilterType::Pointer lsdFilter = LSDFilterType::New();

  // Reade the input image
  reader->SetFileName(infname);
  reader->GenerateOutputInformation();

  // LSD Detection
  lsdFilter->SetInput(reader->GetOutput());

  VectorDataWriterType::Pointer vdWriter = VectorDataWriterType::New();
  vdWriter->SetFileName(outfname);
  vdWriter->SetInput(lsdFilter->GetOutput());
  vdWriter->Update();

  if (argc > 3)
  {
    // Write the status map
    const char*         regfname = argv[3];
    WriterType::Pointer writer0  = WriterType::New();
    writer0->SetFileName(regfname);
    writer0->SetInput(lsdFilter->GetMap());
    writer0->Update();

    // Write the gradient modulus image
    typedef otb::ImageFileWriter<otb::Image<double>> WriterDoubleType;
    const char*                                      gradModfname = argv[4];
    WriterDoubleType::Pointer                        writer1      = WriterDoubleType::New();
    writer1->SetFileName(gradModfname);
    writer1->SetInput(lsdFilter->GetGradMod());
    writer1->Update();

    // Write the gradient orientation image
    const char*               gradOrifname = argv[5];
    WriterDoubleType::Pointer writer2      = WriterDoubleType::New();
    writer1->SetFileName(gradOrifname);
    writer1->SetInput(lsdFilter->GetGradOri());
    writer1->Update();
  }

  return EXIT_SUCCESS;
}

int otbLineSegmentDetector_8b_16b_compare(int itkNotUsed(argc), char* argv[])
{
  const char* infname8   = argv[1];
  const char* infname16  = argv[2];
  const char* outfname8  = argv[3];
  const char* outfname16 = argv[4];

  /** Typedefs */
  typedef unsigned char                    PixelType8;
  typedef otb::Image<PixelType8>           ImageType8;
  typedef otb::ImageFileReader<ImageType8> ReaderType8;
  typedef otb::LineSegmentDetector<ImageType8, double> LSDFilterType8;

  typedef unsigned short                    PixelType16;
  typedef otb::Image<PixelType16>           ImageType16;
  typedef otb::ImageFileReader<ImageType16> ReaderType16;
  typedef otb::LineSegmentDetector<ImageType16, double> LSDFilterType16;

  typedef LSDFilterType8::VectorDataType            VectorDataType;
  typedef otb::VectorDataFileWriter<VectorDataType> VectorDataWriterType;

  /** 8bits */
  // Instantiation of smart pointer
  ReaderType8::Pointer    reader8    = ReaderType8::New();
  LSDFilterType8::Pointer lsdFilter8 = LSDFilterType8::New();
  // Reade the input image
  reader8->SetFileName(infname8);
  reader8->GenerateOutputInformation();
  // LSD Detection
  lsdFilter8->SetInput(reader8->GetOutput());
  VectorDataWriterType::Pointer vdWriter8 = VectorDataWriterType::New();
  vdWriter8->SetFileName(outfname8);
  vdWriter8->SetInput(lsdFilter8->GetOutput());
  vdWriter8->Update();

  /** 16bits */
  // Instantiation of smart pointer
  ReaderType16::Pointer    reader16    = ReaderType16::New();
  LSDFilterType16::Pointer lsdFilter16 = LSDFilterType16::New();
  // Reade the input image
  reader16->SetFileName(infname16);
  reader16->GenerateOutputInformation();
  // LSD Detection
  lsdFilter16->SetInput(reader16->GetOutput());
  VectorDataWriterType::Pointer vdWriter16 = VectorDataWriterType::New();
  vdWriter16->SetFileName(outfname16);
  vdWriter16->SetInput(lsdFilter16->GetOutput());
  vdWriter16->Update();

  return EXIT_SUCCESS;
}