Examples with AztecDetectorResult com.google.zxing.aztec.AztecDetectorResult used on opensource projects

Example 6 with AztecDetectorResult

use of com.google.zxing.aztec.AztecDetectorResult in project zxing by zxing.

the class DecoderTest method testDecodeTooManyErrors2.

@Test(expected = FormatException.class)
public void testDecodeTooManyErrors2() throws FormatException {
    BitMatrix matrix = BitMatrix.parse("" + ". X X . . X . X X . . . X . . X X X . . . X X . X X . \n" + "X X . X X . . X . . . X X . . . X X . X X X . X . X X \n" + ". . . . X . . . X X X . X X . X X X X . X X . . X . . \n" + "X . X X . . X . . . X X . X X . X . X X . . . . . X . \n" + "X X . X . . X . X X . . . . . X X . . . . . X . . . X \n" + "X . . X . . . . . . X . . . X . X X X X X X X . . . X \n" + "X . . X X . . X . . X X . . . . . X . . . . . X X X . \n" + ". . X X X X . X . . . . . X X X X X X . . . . . . X X \n" + "X . . . X . X X X X X X . . X X X . X . X X X X X X . \n" + "X . . X X X . X X X X X X X X X X X X X . . . X . X X \n" + ". . . . X X . . . X . . . . . . . X X . . . X X . X . \n" + ". . . X X X . . X X . X X X X X . X . . X . . . . . . \n" + "X . . . . X . X . X . X . . . X . X . X X . X X . X X \n" + "X . X . . X . X . X . X . X . X . X . . . . . X . X X \n" + "X . X X X . . X . X . X . . . X . X . X X X . . . X X \n" + "X X X X X X X X . X . X X X X X . X . X . X . X X X . \n" + ". . . . . . . X . X . . . . . . . X X X X . . . X X X \n" + "X X . . X . . X . X X X X X X X X X X X X X . . X . X \n" + "X X X . X X X X . . X X X X . . X . . . . X . . X X X \n" + ". . X X X X X . X . . . . X X X X . . X X X . X . X . \n" + ". . X X . X . X . . . X . X X . X X . . . . X X . . . \n" + "X . . . X . X . X X X X X X . . X . X X X X X . X . . \n" + ". X . . . X X X . . . . . X . . . . . X X X X X . X . \n" + "X . . X . X X X X . X . X . . . . X . X X . X . . X . \n" + "X . . . X X . X . X X X X X X X X . X X X X . . X X . \n" + ". X X X X . . X . . X X X . X X . . X . . . . X X X . \n" + "X X . . . X X . . X . X . . . . X X . X . . X . X . X \n", "X ", ". ");
    AztecDetectorResult r = new AztecDetectorResult(matrix, NO_POINTS, true, 16, 4);
    new Decoder().decode(r);
}

Example 7 with AztecDetectorResult

use of com.google.zxing.aztec.AztecDetectorResult in project zxing by zxing.

the class DetectorTest method testErrorInParameterLocator.

// Test that we can tolerate errors in the parameter locator bits
private static void testErrorInParameterLocator(String data) throws Exception {
    AztecCode aztec = Encoder.encode(data.getBytes(StandardCharsets.ISO_8859_1), 25, Encoder.DEFAULT_AZTEC_LAYERS);
    // pseudo-random, but deterministic
    Random random = new Random(aztec.getMatrix().hashCode());
    int layers = aztec.getLayers();
    boolean compact = aztec.isCompact();
    List<Point> orientationPoints = getOrientationPoints(aztec);
    for (boolean isMirror : new boolean[] { false, true }) {
        for (BitMatrix matrix : getRotations(aztec.getMatrix())) {
            // Systematically try every possible 1- and 2-bit error.
            for (int error1 = 0; error1 < orientationPoints.size(); error1++) {
                for (int error2 = error1; error2 < orientationPoints.size(); error2++) {
                    BitMatrix copy = isMirror ? transpose(matrix) : clone(matrix);
                    copy.flip(orientationPoints.get(error1).getX(), orientationPoints.get(error1).getY());
                    if (error2 > error1) {
                        // if error2 == error1, we only test a single error
                        copy.flip(orientationPoints.get(error2).getX(), orientationPoints.get(error2).getY());
                    }
                    // The detector doesn't seem to work when matrix bits are only 1x1.  So magnify.
                    AztecDetectorResult r = new Detector(makeLarger(copy, 3)).detect(isMirror);
                    assertNotNull(r);
                    assertEquals(r.getNbLayers(), layers);
                    assertEquals(r.isCompact(), compact);
                    DecoderResult res = new Decoder().decode(r);
                    assertEquals(data, res.getText());
                }
            }
            // Try a few random three-bit errors;
            for (int i = 0; i < 5; i++) {
                BitMatrix copy = clone(matrix);
                Collection<Integer> errors = new TreeSet<>();
                while (errors.size() < 3) {
                    // Quick and dirty way of getting three distinct integers between 1 and n.
                    errors.add(random.nextInt(orientationPoints.size()));
                }
                for (int error : errors) {
                    copy.flip(orientationPoints.get(error).getX(), orientationPoints.get(error).getY());
                }
                try {
                    new Detector(makeLarger(copy, 3)).detect(false);
                    fail("Should not reach here");
                } catch (NotFoundException expected) {
                // continue
                }
            }
        }
    }
}

Example 8 with AztecDetectorResult

use of com.google.zxing.aztec.AztecDetectorResult in project zxing by zxing.

the class EncoderTest method testEncodeDecode.

private static void testEncodeDecode(String data, boolean compact, int layers) throws Exception {
    AztecCode aztec = Encoder.encode(data.getBytes(StandardCharsets.ISO_8859_1), 25, Encoder.DEFAULT_AZTEC_LAYERS);
    assertEquals("Unexpected symbol format (compact)", compact, aztec.isCompact());
    assertEquals("Unexpected nr. of layers", layers, aztec.getLayers());
    BitMatrix matrix = aztec.getMatrix();
    AztecDetectorResult r = new AztecDetectorResult(matrix, NO_POINTS, aztec.isCompact(), aztec.getCodeWords(), aztec.getLayers());
    DecoderResult res = new Decoder().decode(r);
    assertEquals(data, res.getText());
    // Check error correction by introducing a few minor errors
    Random random = getPseudoRandom();
    matrix.flip(random.nextInt(matrix.getWidth()), random.nextInt(2));
    matrix.flip(random.nextInt(matrix.getWidth()), matrix.getHeight() - 2 + random.nextInt(2));
    matrix.flip(random.nextInt(2), random.nextInt(matrix.getHeight()));
    matrix.flip(matrix.getWidth() - 2 + random.nextInt(2), random.nextInt(matrix.getHeight()));
    r = new AztecDetectorResult(matrix, NO_POINTS, aztec.isCompact(), aztec.getCodeWords(), aztec.getLayers());
    res = new Decoder().decode(r);
    assertEquals(data, res.getText());
}