Examples with TIFFIFD it.geosolutions.imageioimpl.plugins.tiff.TIFFIFD used on opensource projects

Example 1 with TIFFIFD

use of it.geosolutions.imageioimpl.plugins.tiff.TIFFIFD in project imageio-ext by geosolutions-it.

the class TIFFMetadataTest method testImageRead.

/**
 * This test class is used for testing the capability of the TIFFImageReader
 * class to read EXIF metadata. TIFFImageReader class presented a bug when
 * the EXIF IFD pointer tag type was not LONG (type = 4) but was the new
 * IFD_POINTER type (type = 13) defined in the Technical Note 1 of the TIFF
 * Specification Supplement documentation. This variation provoked a
 * ClassCastException when the reader tried to cast the EXIF IFD pointer
 * data to the TIFFIFD class. This bug has been fixed by adding the
 * possibility to contain the IFD_POINTER type to the EXIF IFD pointer tag.
 * The testImageRead() method reads an image with the new TIFF tag type and
 * checks if the EXIF tags has been read by the TIFFImageReader.
 *
 * @throws IOException
 */
@Test
public void testImageRead() throws IOException {
    // Selection of the input file from the TestData directory
    File inputFile = TestData.file(this, "test_IFD.tif");
    // Instantiation of the read-params
    final TIFFImageReadParam param = new TIFFImageReadParam();
    // Instantiation of the file-reader
    TIFFImageReader reader = (TIFFImageReader) new TIFFImageReaderSpi().createReaderInstance();
    // Creation of the file input stream associated to the selected file
    FileImageInputStream stream0 = new FileImageInputStream(inputFile);
    try {
        // Setting the inputstream to the reader
        reader.setInput(stream0);
        // Reading of the image
        RenderedImage img = reader.read(0, param);
        // Reading of the associated metadata
        TIFFImageMetadata metadata = (TIFFImageMetadata) reader.getImageMetadata(0);
        // Check if the Exif pointer metadata is present
        int tagPointer = 34665;
        boolean fieldPointer = metadata.getRootIFD().containsTIFFField(tagPointer);
        assertTrue(fieldPointer);
        // Selection of the subIFD associated to the exif pointer
        TIFFIFD subIFD = (TIFFIFD) metadata.getTIFFField(tagPointer).getData();
        // Selection of the tags associated to the EXIF pointer
        int tagNumberExifVersion = 36864;
        int tagNumberDateTime = 36868;
        int tagNumberCompConfig = 37121;
        int tagNumberFlashPix = 40960;
        int tagNumberColor = 40961;
        int tagNumberXpixelRes = 40962;
        int tagNumberYpixelRes = 40963;
        // Test Assertions
        assertTrue(subIFD.containsTIFFField(tagNumberExifVersion));
        assertTrue(subIFD.containsTIFFField(tagNumberDateTime));
        assertTrue(subIFD.containsTIFFField(tagNumberCompConfig));
        assertTrue(subIFD.containsTIFFField(tagNumberFlashPix));
        assertTrue(subIFD.containsTIFFField(tagNumberColor));
        assertTrue(subIFD.containsTIFFField(tagNumberXpixelRes));
        assertTrue(subIFD.containsTIFFField(tagNumberYpixelRes));
    } catch (Exception e) {
        // If an exception occurred the logger catch the exception and print
        // the message
        logger.log(Level.SEVERE, e.getMessage(), e);
    } finally {
        // and the input stream are closed
        if (stream0 != null) {
            stream0.flush();
            stream0.close();
        }
        if (reader != null) {
            reader.dispose();
        }
    }
}

Example 2 with TIFFIFD

use of it.geosolutions.imageioimpl.plugins.tiff.TIFFIFD in project imageio-ext by geosolutions-it.

the class TIFFDirectory method getDirectoryAsIFD.

/**
 * Converts a <code>TIFFDirectory</code> to a <code>TIFFIFD</code>.
 */
private static TIFFIFD getDirectoryAsIFD(TIFFDirectory dir) {
    if (dir instanceof TIFFIFD) {
        return (TIFFIFD) dir;
    }
    TIFFIFD ifd = new TIFFIFD(Arrays.asList(dir.getTagSets()), dir.getParentTag());
    TIFFField[] fields = dir.getTIFFFields();
    int numFields = fields.length;
    for (int i = 0; i < numFields; i++) {
        TIFFField f = fields[i];
        TIFFTag tag = f.getTag();
        if (tag.isIFDPointer()) {
            TIFFDirectory subIFD = getDirectoryAsIFD((TIFFDirectory) f.getData());
            f = new TIFFField(tag, f.getType(), f.getCount(), subIFD);
        }
        ifd.addTIFFField(f);
    }
    return ifd;
}