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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one or more
3    * contributor license agreements.  See the NOTICE file distributed with
4    * this work for additional information regarding copyright ownership.
5    * The ASF licenses this file to You under the Apache License, Version 2.0
6    * (the "License"); you may not use this file except in compliance with
7    * the License.  You may obtain a copy of the License at
8    *
9    *      http://www.apache.org/licenses/LICENSE-2.0
10   *
11   * Unless required by applicable law or agreed to in writing, software
12   * distributed under the License is distributed on an "AS IS" BASIS,
13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   * See the License for the specific language governing permissions and
15   * limitations under the License.
16   */
17  package org.apache.commons.imaging.formats.tiff;
18  
19  import static org.junit.Assert.assertEquals;
20  
21  import java.awt.image.BufferedImage;
22  import java.io.IOException;
23  import java.util.Map;
24  import java.util.TreeMap;
25  
26  import org.apache.commons.imaging.ImageFormats;
27  import org.apache.commons.imaging.ImageReadException;
28  import org.apache.commons.imaging.ImageWriteException;
29  import org.apache.commons.imaging.Imaging;
30  import org.apache.commons.imaging.formats.tiff.constants.TiffConstants;
31  import org.junit.Test;
32  
33  public class TiffSubImageTest extends TiffBaseTest {
34  
35      @Test
36      public void testSubImage() throws ImageReadException, ImageWriteException, IOException {
37          final BufferedImage src = new BufferedImage(10, 10, BufferedImage.TYPE_INT_RGB);
38          final byte[] imageBytes = Imaging.writeImageToBytes(src, ImageFormats.TIFF, null);
39          
40          final Map<String, Object> params = new TreeMap<>();
41          params.put(TiffConstants.PARAM_KEY_SUBIMAGE_X, 0);
42          params.put(TiffConstants.PARAM_KEY_SUBIMAGE_Y, 0);
43          params.put(TiffConstants.PARAM_KEY_SUBIMAGE_WIDTH, 2);
44          params.put(TiffConstants.PARAM_KEY_SUBIMAGE_HEIGHT, 3);
45          final BufferedImage image = Imaging.getBufferedImage(imageBytes, params);
46          assertEquals(image.getWidth(), 2);
47          assertEquals(image.getHeight(), 3);
48      }
49  }