code: /**
   * boilerpipe
   *
   * Copyright (c) 2009, 2014 Christian Kohlschütter
   *
   * The author licenses this file to You 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.
   */
  package com.kohlschutter.boilerpipe.demo;
  
  import java.net.URL;
  import java.util.Collections;
  import java.util.List;
  
  import com.kohlschutter.boilerpipe.BoilerpipeExtractor;
  import com.kohlschutter.boilerpipe.document.Image;
  import com.kohlschutter.boilerpipe.extractors.CommonExtractors;
  import com.kohlschutter.boilerpipe.sax.ImageExtractor;
  
  /**
   * Demonstrates how to use Boilerpipe to get the images within the main content.
   */
  public final class ImageExtractorDemo {
    public static void main(String[] args) throws Exception {
      URL url = new URL("http://www.spiegel.de/wissenschaft/natur/0,1518,789176,00.html");
  
      // choose from a set of useful BoilerpipeExtractors...
      final BoilerpipeExtractor extractor = CommonExtractors.ARTICLE_EXTRACTOR;
      // final BoilerpipeExtractor extractor = CommonExtractors.DEFAULT_EXTRACTOR;
      // final BoilerpipeExtractor extractor = CommonExtractors.CANOLA_EXTRACTOR;
      // final BoilerpipeExtractor extractor = CommonExtractors.LARGEST_CONTENT_EXTRACTOR;
  
      final ImageExtractor ie = ImageExtractor.INSTANCE;
  
      List<Image> imgUrls = ie.process(url, extractor);
  
      // automatically sorts them by decreasing area, i.e. most probable true positives come first
      Collections.sort(imgUrls);
  
      for (Image img : imgUrls) {
        System.out.println("* " + img);
      }
  
    }
  }
  