com.google.zxing.client.j2se.BufferedImageLuminanceSource Java Examples

/**
 * 读二维码并输出携带的信息
 */
public static void readQrCode(InputStream inputStream) throws IOException {
    //从输入流中获取字符串信息
    BufferedImage image = ImageIO.read(inputStream);
    //将图像转换为二进制位图源
    LuminanceSource source = new BufferedImageLuminanceSource(image);
    BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
    QRCodeReader reader = new QRCodeReader();
    Result result = null;
    try {
        result = reader.decode(bitmap);
    } catch (ReaderException e) {
        e.printStackTrace();
    }
    System.out.println(result.getText());
}
 

/**
 * Decode all barcodes in the image
 */
private String multiple(BufferedImage img) throws NotFoundException, ChecksumException, FormatException {
	long begin = System.currentTimeMillis();
	LuminanceSource source = new BufferedImageLuminanceSource(img);
	BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
	com.google.zxing.Reader reader = new MultiFormatReader();
	MultipleBarcodeReader bcReader = new GenericMultipleBarcodeReader(reader);
	Hashtable<DecodeHintType, Object> hints = new Hashtable<DecodeHintType, Object>();
	hints.put(DecodeHintType.TRY_HARDER, Boolean.TRUE);
	StringBuilder sb = new StringBuilder();

	for (Result result : bcReader.decodeMultiple(bitmap, hints)) {
		sb.append(result.getText()).append(" ");
	}

	SystemProfiling.log(null, System.currentTimeMillis() - begin);
	log.trace("multiple.Time: {}", System.currentTimeMillis() - begin);
	return sb.toString();
}
 

/**
 * 二维码解码
 * 
 * @param imgPath
 * @return String
 */
public static String decode2(String imgPath) {
	BufferedImage image = null;
	Result result = null;
	try {
		image = ImageIO.read(new File(imgPath));
		if (image == null) {
			System.out.println("the decode image may be not exit.");
		}
		LuminanceSource source = new BufferedImageLuminanceSource(image);
		BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));

		Hashtable<DecodeHintType, Object> hints = new Hashtable<DecodeHintType, Object>();
		hints.put(DecodeHintType.CHARACTER_SET, "GBK");

		result = new MultiFormatReader().decode(bitmap, hints);
		return result.getText();
	} catch (Exception e) {
		e.printStackTrace();
	}
	return null;
}
 

/**
 * 条形码解码
 * 
 * @param imgPath
 * @return String
 */
public static String decode(String imgPath) {
	BufferedImage image = null;
	Result result = null;
	try {
		image = ImageIO.read(new File(imgPath));
		if (image == null) {
			System.out.println("the decode image may be not exit.");
		}
		LuminanceSource source = new BufferedImageLuminanceSource(image);
		BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));

		result = new MultiFormatReader().decode(bitmap, null);
		return result.getText();
	} catch (Exception e) {
		e.printStackTrace();
	}
	return null;
}
 

/**
 * 解析二维码 （ZXing）
 *
 * @param file 二维码图片
 * @return
 * @throws Exception
 */
public static String decode(File file) throws Exception {
    BufferedImage image;
    image = ImageIO.read(file);
    if (image == null) {
        return null;
    }
    BufferedImageLuminanceSource source = new BufferedImageLuminanceSource(image);
    BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
    Result result;
    Hashtable<DecodeHintType, Object> hints = new Hashtable<DecodeHintType, Object>();
    hints.put(DecodeHintType.CHARACTER_SET, CHARSET);
    result = new MultiFormatReader().decode(bitmap, hints);
    String resultStr = result.getText();
    return resultStr;
}
 

public static String decode(BufferedImage image) {

        // convert the image to a binary bitmap source
        LuminanceSource source = new BufferedImageLuminanceSource(image);
        BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));

        // decode the barcode
        QRCodeReader reader = new QRCodeReader();

        try {
            @SuppressWarnings("rawtypes")
            Hashtable hints = new Hashtable();
            Result result = reader.decode(bitmap, hints);


            return result.getText();
        } catch (ReaderException e) {
            // the data is improperly formatted
        }

        return "";
    }
 

/**
 * 解析二维码
 * 
 * @param file
 *            二维码图片
 * @return
 * @throws Exception
 */
public static String decode(InputStream in) throws Exception {
	BufferedImage image = ImageIO.read(in);
	if (image == null) {
		return null;
	}
	BufferedImageLuminanceSource source = new BufferedImageLuminanceSource(image);
	BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
	Result result;
	Hashtable<DecodeHintType, Object> hints = new Hashtable<DecodeHintType, Object>();
	hints.put(DecodeHintType.CHARACTER_SET, CHARSET);
	result = new MultiFormatReader().decode(bitmap, hints);
	String resultStr = result.getText();
	in.close();
	return resultStr;
}
 

public static String decode(BufferedImage image) {

        // convert the image to a binary bitmap source
        LuminanceSource source = new BufferedImageLuminanceSource(image);
        BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));

        // decode the barcode
        QRCodeReader reader = new QRCodeReader();

        try {
            @SuppressWarnings("rawtypes")
            Hashtable hints = new Hashtable();
            Result result = reader.decode(bitmap, hints);


            return result.getText();
        } catch (ReaderException e) {
            // the data is improperly formatted
        }

        return "";
    }
 

/**
 * 图片解析
 */
protected ShadowSocksDetailsEntity parseImg(String imgURL) throws IOException, NotFoundException {
	String str = StringUtils.removeFirst(imgURL, "data:image/png;base64,");

	Map<DecodeHintType, Object> hints = new LinkedHashMap<>();
	// 解码设置编码方式为：utf-8，
	hints.put(DecodeHintType.CHARACTER_SET, StandardCharsets.UTF_8.name());
	//优化精度
	hints.put(DecodeHintType.TRY_HARDER, Boolean.TRUE);
	//复杂模式，开启PURE_BARCODE模式
	hints.put(DecodeHintType.PURE_BARCODE, Boolean.TRUE);

	try (ByteArrayInputStream bis = new ByteArrayInputStream(Base64.decodeBase64(str))) {
		BufferedImage image = ImageIO.read(bis);
		Binarizer binarizer = new HybridBinarizer(new BufferedImageLuminanceSource(image));
		BinaryBitmap binaryBitmap = new BinaryBitmap(binarizer);
		Result res = new MultiFormatReader().decode(binaryBitmap, hints);
		return parseLink(res.toString());
	}
}
 

/**
 * 图片解析
 */
protected ShadowSocksDetailsEntity parseURL(String imgURL) throws IOException, NotFoundException {
	Connection.Response resultImageResponse = getConnection(imgURL).execute();

	Map<DecodeHintType, Object> hints = new LinkedHashMap<>();
	// 解码设置编码方式为：utf-8，
	hints.put(DecodeHintType.CHARACTER_SET, StandardCharsets.UTF_8.name());
	//优化精度
	hints.put(DecodeHintType.TRY_HARDER, Boolean.TRUE);
	//复杂模式，开启PURE_BARCODE模式
	hints.put(DecodeHintType.PURE_BARCODE, Boolean.TRUE);

	try (BufferedInputStream bytes = resultImageResponse.bodyStream()) {
		BufferedImage image = ImageIO.read(bytes);
		Binarizer binarizer = new HybridBinarizer(new BufferedImageLuminanceSource(image));
		BinaryBitmap binaryBitmap = new BinaryBitmap(binarizer);
		Result res = new MultiFormatReader().decode(binaryBitmap, hints);
		return parseLink(res.toString());
	}
}
 

/**
 * 读取二维码内容
 *
 * @param filePath 二维码路径
 * @return
 */
public static String decodeQR(String filePath) {
    String retStr = "";
    if ("".equalsIgnoreCase(filePath) && filePath.length() == 0) {
        return "图片路径为空!";
    }
    try {
        BufferedImage bufferedImage = ImageIO.read(new FileInputStream(filePath));
        LuminanceSource source = new BufferedImageLuminanceSource(bufferedImage);
        Binarizer binarizer = new HybridBinarizer(source);
        BinaryBitmap bitmap = new BinaryBitmap(binarizer);
        HashMap<DecodeHintType, Object> hintTypeObjectHashMap = new HashMap<>();
        hintTypeObjectHashMap.put(DecodeHintType.CHARACTER_SET, "UTF-8");
        Result result = new MultiFormatReader().decode(bitmap, hintTypeObjectHashMap);
        retStr = result.getText();
    } catch (Exception e) {
        e.printStackTrace();
    }
    return retStr;
}
 

/**
 * 读取二维码图片
 *
 * @param path
 * @return
 * @throws Exception
 */
public static String read(String path) throws Exception {
    File file = new File(path);
    BufferedImage image;
    image = ImageIO.read(file);
    if (Objects.isNull(image)) {
        throw new RuntimeException("无法读取源文件");
    }
    LuminanceSource source = new BufferedImageLuminanceSource(image);
    BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
    Result result;
    @SuppressWarnings("rawtypes")
    EnumMap<DecodeHintType, String> hints = Maps.newEnumMap(DecodeHintType.class);
    //解码设置编码方式为：utf-8
    hints.put(DecodeHintType.CHARACTER_SET, "utf-8");
    result = new MultiFormatReader().decode(bitmap, hints);
    return result.getText();
}
 

/**
 * 二维码解码
 * 
 * @param imgPath
 * @return String
 */
public static String decode2(String imgPath) {
	BufferedImage image = null;
	Result result = null;
	try {
		image = ImageIO.read(new File(imgPath));
		if (image == null) {
			System.out.println("the decode image may be not exit.");
		}
		LuminanceSource source = new BufferedImageLuminanceSource(image);
		BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
		Hashtable<DecodeHintType, Object> hints = new Hashtable<DecodeHintType, Object>();
		hints.put(DecodeHintType.CHARACTER_SET, "GBK");
		result = new MultiFormatReader().decode(bitmap, hints);
		return result.getText();
	} catch (Exception e) {
		e.printStackTrace();
	}
	return null;
}
 

/**
 * 条形码解码
 * 
 * @param imgPath
 * @return String
 */
public static String decode(String imgPath) {
	BufferedImage image = null;
	Result result = null;
	try {
		image = ImageIO.read(new File(imgPath));
		if (image == null) {
			System.out.println("the decode image may be not exit.");
		}
		LuminanceSource source = new BufferedImageLuminanceSource(image);
		BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
		result = new MultiFormatReader().decode(bitmap, null);
		return result.getText();
	} catch (Exception e) {
		e.printStackTrace();
	}
	return null;
}
 

public static Result decodeQrCodeFile(String filePath) throws IOException, NotFoundException {
    MultiFormatReader formatReader = new MultiFormatReader();
    File file = new File(filePath);
    BufferedImage image = ImageIO.read(file);
    LuminanceSource source = new BufferedImageLuminanceSource(image);
    Binarizer binarizer = new HybridBinarizer(source);
    BinaryBitmap binaryBitmap = new BinaryBitmap(binarizer);
    Map hints = new HashMap();
    hints.put(EncodeHintType.CHARACTER_SET, "UTF-8");
    return formatReader.decode(binaryBitmap, hints);
}
 

@Override
public String read(InputStream inputStream) {
    try {
        String string = reader.decode(new BinaryBitmap(new HybridBinarizer(new BufferedImageLuminanceSource(
                ImageIO.read(inputStream))))).getText();
        inputStream.close();

        return string;
    } catch (Throwable e) {
        logger.warn(e, "读取二维码图片内容时发生异常！");

        return null;
    }
}
 

private static String getQRCodeImageRawText(Path path) throws IOException, NotFoundException {
    Map<DecodeHintType, Object> hints = new Hashtable<DecodeHintType, Object>();
    hints.put(DecodeHintType.CHARACTER_SET, StandardCharsets.UTF_8.name());
    try(FileInputStream fis = new FileInputStream(path.toFile())) {
        BufferedImage bi = ImageIO.read(fis);
        BinaryBitmap binaryBitmap = new BinaryBitmap(new HybridBinarizer(new BufferedImageLuminanceSource(bi)));
        Result result = new MultiFormatReader().decode(binaryBitmap, hints);
        return result.getText();
    }
}
 

@Override
public void run() {
    try {
        if (!webCam.isOpen())
            webCam.open();

        isRunning = true;
        Result result;
        BufferedImage bufferedImage;
        while (isRunning) {
            bufferedImage = webCam.getImage();
            if (bufferedImage != null) {
                WritableImage writableImage = SwingFXUtils.toFXImage(bufferedImage, null);
                imageView.setImage(writableImage);
                imageView.setRotationAxis(new Point3D(0.0, 1.0, 0.0));
                imageView.setRotate(180.0);

                LuminanceSource source = new BufferedImageLuminanceSource(bufferedImage);
                BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));

                try {
                    result = new MultiFormatReader().decode(bitmap);
                    isRunning = false;
                    String qrCode = result.getText();
                    UserThread.execute(() -> resultHandler.accept(qrCode));
                } catch (NotFoundException ignore) {
                    // No qr code in image...
                }
            }
        }
    } catch (Throwable t) {
        log.error(t.toString());
    } finally {
        webCam.close();
    }
}
 

@Test
public void testQRWorks() throws Exception {
    HttpGet getRequest = new HttpGet(httpServerUrl + clientPair.token + "/qr");
    String cloneToken;
    try (CloseableHttpResponse response = httpclient.execute(getRequest)) {
        assertEquals(200, response.getStatusLine().getStatusCode());
        assertEquals("image/png", response.getFirstHeader("Content-Type").getValue());
        byte[] data = EntityUtils.toByteArray(response.getEntity());
        assertNotNull(data);

        //get the data from the input stream
        BufferedImage image = ImageIO.read(new ByteArrayInputStream(data));

        //convert the image to a binary bitmap source
        LuminanceSource source = new BufferedImageLuminanceSource(image);
        BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
        QRCodeReader reader = new QRCodeReader();
        Result result = reader.decode(bitmap);
        String resultString = result.getText();
        assertTrue(resultString.startsWith("blynk://token/clone/"));
        assertTrue(resultString.endsWith("?server=127.0.0.1&port=10443"));
        cloneToken = resultString.substring(
                resultString.indexOf("blynk://token/clone/") + "blynk://token/clone/".length(),
                resultString.indexOf("?server=127.0.0.1&port=10443"));
        assertEquals(32, cloneToken.length());
    }

    clientPair.appClient.send("getProjectByCloneCode " + cloneToken);
    DashBoard dashBoard = clientPair.appClient.parseDash(1);
    assertEquals("My Dashboard", dashBoard.name);
}
 

/**
 * 读取二维码
 * @param file 二维码源
 * @throws Exception
 */
private static void readCode(File file) throws Exception{
	BufferedImage encodedBufferedImage = ImageIO.read(file) ;
	LuminanceSource source = new BufferedImageLuminanceSource(encodedBufferedImage);
	Result result = new QRCodeReader().decode(new BinaryBitmap(new HybridBinarizer(source)));
	System.out.println(result.getText());
}
 

/**
 * 解析QRCode二维码
 */
@SuppressWarnings("unchecked")
public static void decode(File file) {
	try {
		BufferedImage image;
		try {
			image = ImageIO.read(file);
			if (image == null) {
				System.out.println("Could not decode image");
			}
			LuminanceSource source = new BufferedImageLuminanceSource(image);
			BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
			Result result;
			@SuppressWarnings("rawtypes")
			Hashtable hints = new Hashtable();
			//解码设置编码方式为：utf-8
			hints.put(DecodeHintType.CHARACTER_SET, "utf-8");
			result = new MultiFormatReader().decode(bitmap, hints);
			String resultStr = result.getText();
			System.out.println("解析后内容：" + resultStr);
		} catch (IOException ioe) {
			System.out.println(ioe.toString());
		} catch (ReaderException re) {
			System.out.println(re.toString());
		}
	} catch (Exception ex) {
		System.out.println(ex.toString());
	}
}
 

/**
 * Decode only one barcode
 */
@SuppressWarnings("unused")
private String simple(BufferedImage img) throws NotFoundException, ChecksumException, FormatException {
	long begin = System.currentTimeMillis();
	LuminanceSource source = new BufferedImageLuminanceSource(img);
	BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
	com.google.zxing.Reader reader = new MultiFormatReader();
	Result result = reader.decode(bitmap);

	SystemProfiling.log(null, System.currentTimeMillis() - begin);
	log.trace("simple.Time: {}", System.currentTimeMillis() - begin);
	return result.getText();
}
 

/**
 * 解码 QRCode 图片，解析出其内容
 *
 * @param imageURI QRCode 图片 URI
 * @return 解析后的内容
 * @throws IOException
 */
public static String decodeQRCodeImage(URI imageURI) throws IOException {

    BufferedImage bufferedImage = ImageReader.readImage(imageURI);
    LuminanceSource source = new BufferedImageLuminanceSource(bufferedImage);
    BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
    QRCodeReader reader = new QRCodeReader();
    try {
        Result result = reader.decode(bitmap);
        return result.getText();
    } catch (ReaderException e) {
        e.printStackTrace();
    }
    return "";
}
 

public static String decode(InputStream input)
        throws IOException, NotFoundException {
    BinaryBitmap binaryBitmap = new BinaryBitmap(new HybridBinarizer(
            new BufferedImageLuminanceSource(
                    ImageIO.read(input))));
    Result qrCodeResult = new MultiFormatReader().decode(binaryBitmap);
    return qrCodeResult.getText();
}
 

/**
 * 解析 qrcode 图片
 *
 * @param paramDTO qrcode 参数
 * @return
 */
public static String decode(BarcodeParamDTO paramDTO) {
	try {
		BufferedImage bufferedImage = ImageIO.read(new FileInputStream(paramDTO.getFilepath()));
		LuminanceSource source = new BufferedImageLuminanceSource(bufferedImage);
		Binarizer binarizer = new HybridBinarizer(source);
		BinaryBitmap bitmap = new BinaryBitmap(binarizer);
		Result result = new MultiFormatReader().decode(bitmap, paramDTO.getDecodeHints());
		return result.getText();
	} catch (Exception e) {
		e.printStackTrace();
		return null;
	}
}
 

/**
 * 解码
 *
 * @param filePath
 * @return
 */
@SuppressWarnings({"rawtypes", "unchecked"})
public static String decode(String filePath) throws IOException, NotFoundException {
    BufferedImage image = ImageIO.read(new File(filePath));
    LuminanceSource source = new BufferedImageLuminanceSource(image);
    BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
    Hashtable<DecodeHintType, Object> hints = new Hashtable<>();
    hints.put(DecodeHintType.CHARACTER_SET, "UTF-8");
    Result result = new MultiFormatReader().decode(bitmap, hints);
    return result.getText();
}
 

public static String decode(InputStream in) throws Exception {
	BufferedImage image = ImageIO.read(in);
	LuminanceSource source = new BufferedImageLuminanceSource(image);
	Binarizer binarizer = new HybridBinarizer(source);
	BinaryBitmap binaryBitmap = new BinaryBitmap(binarizer);
	Map<DecodeHintType, Object> hints = new HashMap<DecodeHintType, Object>();
	hints.put(DecodeHintType.CHARACTER_SET, "UTF-8");
	Result result = new MultiFormatReader().decode(binaryBitmap, hints);// 对图像进行解码
	return result.getText();
}
 

/**
 * 生成BinaryBitmap
 * @param inputStream 输入流
 * @return
 * @throws IOException
 */
private static BinaryBitmap createBinaryBitmap(InputStream inputStream) throws IOException {
    BufferedImage bufferedImage = ImageIO.read(inputStream);
    LuminanceSource source = new BufferedImageLuminanceSource(bufferedImage);
    Binarizer binarizer = new HybridBinarizer(source);
    return new BinaryBitmap(binarizer);
}
 

public String decode(BufferedImage image) throws IOException {

		LuminanceSource source = new BufferedImageLuminanceSource(image);
		BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));

		QRCodeReader reader = new QRCodeReader();

		try {

			Hashtable<DecodeHintType, Object> hints = new Hashtable<DecodeHintType, Object>();
			Result result = reader.decode(bitmap, hints);

			return result.getText();
		} catch (ReaderException e) {
			throw new IOException(e);
		}

	}
 

@FXML
    @Override
    public void startAction() {
        if (imageView.getImage() == null) {
            return;
        }
        try {
            synchronized (this) {
                if (task != null) {
                    return;
                }
                task = new SingletonTask<Void>() {
                    private Result result;

                    @Override
                    protected boolean handle() {
                        try {
                            LuminanceSource source = new BufferedImageLuminanceSource(
                                    SwingFXUtils.fromFXImage(imageView.getImage(), null));
                            BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));

                            HashMap hints = new HashMap();
                            hints.put(EncodeHintType.CHARACTER_SET, "UTF-8");
                            result = new MultiFormatReader().decode(bitmap, hints);

                            return result != null;

                        } catch (Exception e) {
                            error = e.toString();
                            return false;
                        }
                    }

                    @Override
                    protected void whenSucceeded() {
                        String s = "---------" + message("Contents") + "---------\n"
                                + result.getText()
                                + "\n\n---------" + message("MetaData") + "---------\n"
                                + message("Type") + ": "
                                + result.getBarcodeFormat().name();
                        if (result.getResultMetadata() != null) {
                            for (ResultMetadataType type : result.getResultMetadata().keySet()) {
                                Object value = result.getResultMetadata().get(type);
                                switch (type) {
                                    case PDF417_EXTRA_METADATA:
//                                        PDF417ResultMetadata pdf417meta
//                                            = (PDF417ResultMetadata) result.getResultMetadata().get(ResultMetadataType.PDF417_EXTRA_METADATA);
                                        break;
                                    case BYTE_SEGMENTS:
                                        s += "\n" + message("BYTE_SEGMENTS") + ": ";
                                        for (byte[] bytes : (List<byte[]>) value) {
                                            s += ByteTools.bytesToHexFormat(bytes) + "        ";
                                        }
                                        break;
                                    default:
                                        s += "\n" + message(type.name()) + ": " + value;
                                }
                            }
                        }
                        result.getTimestamp();
                        codeInput.setText(s);

                    }

                };
                openHandlingStage(task, Modality.WINDOW_MODAL);
                Thread thread = new Thread(task);
                thread.setDaemon(true);
                thread.start();
            }

        } catch (Exception e) {
            logger.error(e.toString());
        }

    }