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

Example 1 with AztecDetectorResult

use of com.google.zxing.aztec.AztecDetectorResult in project weex-example by KalicyZhou.

the class Detector method detect.

/**
   * Detects an Aztec Code in an image.
   *
   * @param isMirror if true, image is a mirror-image of original
   * @return {@link AztecDetectorResult} encapsulating results of detecting an Aztec Code
   * @throws NotFoundException if no Aztec Code can be found
   */
public AztecDetectorResult detect(boolean isMirror) throws NotFoundException {
    // 1. Get the center of the aztec matrix
    Point pCenter = getMatrixCenter();
    // 2. Get the center points of the four diagonal points just outside the bull's eye
    //  [topRight, bottomRight, bottomLeft, topLeft]
    ResultPoint[] bullsEyeCorners = getBullsEyeCorners(pCenter);
    if (isMirror) {
        ResultPoint temp = bullsEyeCorners[0];
        bullsEyeCorners[0] = bullsEyeCorners[2];
        bullsEyeCorners[2] = temp;
    }
    // 3. Get the size of the matrix and other parameters from the bull's eye
    extractParameters(bullsEyeCorners);
    // 4. Sample the grid
    BitMatrix bits = sampleGrid(image, bullsEyeCorners[shift % 4], bullsEyeCorners[(shift + 1) % 4], bullsEyeCorners[(shift + 2) % 4], bullsEyeCorners[(shift + 3) % 4]);
    // 5. Get the corners of the matrix.
    ResultPoint[] corners = getMatrixCornerPoints(bullsEyeCorners);
    return new AztecDetectorResult(bits, corners, compact, nbDataBlocks, nbLayers);
}

Example 2 with AztecDetectorResult

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

the class EncoderTest method testWriter.

private static void testWriter(String data, String charset, int eccPercent, boolean compact, int layers) throws FormatException {
    // 1. Perform an encode-decode round-trip because it can be lossy.
    // 2. Aztec Decoder currently always decodes the data with a LATIN-1 charset:
    String expectedData = new String(data.getBytes(Charset.forName(charset)), StandardCharsets.ISO_8859_1);
    Map<EncodeHintType, Object> hints = new EnumMap<>(EncodeHintType.class);
    hints.put(EncodeHintType.CHARACTER_SET, charset);
    hints.put(EncodeHintType.ERROR_CORRECTION, eccPercent);
    AztecWriter writer = new AztecWriter();
    BitMatrix matrix = writer.encode(data, BarcodeFormat.AZTEC, 0, 0, hints);
    AztecCode aztec = Encoder.encode(data.getBytes(Charset.forName(charset)), eccPercent, Encoder.DEFAULT_AZTEC_LAYERS);
    assertEquals("Unexpected symbol format (compact)", compact, aztec.isCompact());
    assertEquals("Unexpected nr. of layers", layers, aztec.getLayers());
    BitMatrix matrix2 = aztec.getMatrix();
    assertEquals(matrix, matrix2);
    AztecDetectorResult r = new AztecDetectorResult(matrix, NO_POINTS, aztec.isCompact(), aztec.getCodeWords(), aztec.getLayers());
    DecoderResult res = new Decoder().decode(r);
    assertEquals(expectedData, res.getText());
    // Check error correction by introducing up to eccPercent/2 errors
    int ecWords = aztec.getCodeWords() * eccPercent / 100 / 2;
    Random random = getPseudoRandom();
    for (int i = 0; i < ecWords; i++) {
        // don't touch the core
        int x = random.nextBoolean() ? random.nextInt(aztec.getLayers() * 2) : matrix.getWidth() - 1 - random.nextInt(aztec.getLayers() * 2);
        int y = random.nextBoolean() ? random.nextInt(aztec.getLayers() * 2) : matrix.getHeight() - 1 - random.nextInt(aztec.getLayers() * 2);
        matrix.flip(x, y);
    }
    r = new AztecDetectorResult(matrix, NO_POINTS, aztec.isCompact(), aztec.getCodeWords(), aztec.getLayers());
    res = new Decoder().decode(r);
    assertEquals(expectedData, res.getText());
}

Example 3 with AztecDetectorResult

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

the class DecoderTest method testDecodeTooManyErrors.

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

Example 4 with AztecDetectorResult

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

the class Detector method detect.

/**
   * Detects an Aztec Code in an image.
   *
   * @param isMirror if true, image is a mirror-image of original
   * @return {@link AztecDetectorResult} encapsulating results of detecting an Aztec Code
   * @throws NotFoundException if no Aztec Code can be found
   */
public AztecDetectorResult detect(boolean isMirror) throws NotFoundException {
    // 1. Get the center of the aztec matrix
    Point pCenter = getMatrixCenter();
    // 2. Get the center points of the four diagonal points just outside the bull's eye
    //  [topRight, bottomRight, bottomLeft, topLeft]
    ResultPoint[] bullsEyeCorners = getBullsEyeCorners(pCenter);
    if (isMirror) {
        ResultPoint temp = bullsEyeCorners[0];
        bullsEyeCorners[0] = bullsEyeCorners[2];
        bullsEyeCorners[2] = temp;
    }
    // 3. Get the size of the matrix and other parameters from the bull's eye
    extractParameters(bullsEyeCorners);
    // 4. Sample the grid
    BitMatrix bits = sampleGrid(image, bullsEyeCorners[shift % 4], bullsEyeCorners[(shift + 1) % 4], bullsEyeCorners[(shift + 2) % 4], bullsEyeCorners[(shift + 3) % 4]);
    // 5. Get the corners of the matrix.
    ResultPoint[] corners = getMatrixCornerPoints(bullsEyeCorners);
    return new AztecDetectorResult(bits, corners, compact, nbDataBlocks, nbLayers);
}

Example 5 with AztecDetectorResult

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

the class DecoderTest method testAztecResult.

@Test
public void testAztecResult() throws FormatException {
    BitMatrix matrix = BitMatrix.parse("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 X \n" + "  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 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 \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 \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   \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 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 \n" + "  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 \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 \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   \n", "X ", "  ");
    AztecDetectorResult r = new AztecDetectorResult(matrix, NO_POINTS, false, 30, 2);
    DecoderResult result = new Decoder().decode(r);
    assertEquals("88888TTTTTTTTTTTTTTTTTTTTTTTTTTTTTT", result.getText());
    assertArrayEquals(new byte[] { -11, 85, 85, 117, 107, 90, -42, -75, -83, 107, 90, -42, -75, -83, 107, 90, -42, -75, -83, 107, 90, -42, -80 }, result.getRawBytes());
    assertEquals(180, result.getNumBits());
}