Examples with BufferedImageLuminanceSource com.google.zxing.client.j2se.BufferedImageLuminanceSource used on opensource projects

Example 46 with BufferedImageLuminanceSource

use of com.google.zxing.client.j2se.BufferedImageLuminanceSource in project document-management-system by openkm.

the class BarcodeTextExtractor method simple.

/**
 * 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();
}

Example 47 with BufferedImageLuminanceSource

use of com.google.zxing.client.j2se.BufferedImageLuminanceSource in project document-management-system by openkm.

the class BarcodeTextExtractor method multiple.

/**
 * 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();
}

Example 48 with BufferedImageLuminanceSource

use of com.google.zxing.client.j2se.BufferedImageLuminanceSource in project orion-kit by lijiahangmax.

the class CodeGenerator method decode.

/**
 * 解析条码数据
 *
 * @param image img
 * @return data
 */
public String decode(BufferedImage image) {
    try {
        // 设置实际大小 如果不设置可能会导致解析失败
        image = image.getSubimage(0, imgTopMargin, width, height);
        BufferedImageLuminanceSource source = new BufferedImageLuminanceSource(image);
        BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
        return new MultiFormatReader().decode(bitmap, this.getDecodeHint()).getText();
    } catch (Exception e) {
        return null;
    }
}

Example 49 with BufferedImageLuminanceSource

use of com.google.zxing.client.j2se.BufferedImageLuminanceSource in project jtelebot by stdmk.

the class Qr method getTextFromQr.

private String getTextFromQr(BufferedImage image) throws NotFoundException {
    BinaryBitmap binaryBitmap = new BinaryBitmap(new HybridBinarizer(new BufferedImageLuminanceSource(image)));
    Result result = new MultiFormatReader().decode(binaryBitmap);
    return result.getText();
}

Example 50 with BufferedImageLuminanceSource

use of com.google.zxing.client.j2se.BufferedImageLuminanceSource in project RuleApi by buxia97.

the class QRCodeUtil method parseQRCodeByUrl.

/**
 * 根据网络二维码图片解析二维码内容, 区别仅仅在于 ImageIO.read(url); 这一个重载的方法）
 *
 * @param url 二维码图片网络地址，如 https://res.wx.qq.com/mpres/htmledition/images/mp_qrcode3a7b38.gif
 * @return
 * @throws Exception
 */
public static String parseQRCodeByUrl(URL url) {
    String resultStr = null;
    if (url == null) {
        return resultStr;
    }
    try {
        /*
             * ImageIO 的 BufferedImage read(URL input) 方法用于读取网络图片文件转为内存缓冲图像
             * 同理还有：read(File input)、read(InputStream input)、、read(ImageInputStream stream)
             * 如果图片网络地址错误，比如不能访问，则 read 抛异常：javax.imageio.IIOException: Can't get input stream from URL!
             */
        BufferedImage bufferedImage = ImageIO.read(url);
        /*
             * com.google.zxing.client.j2se.BufferedImageLuminanceSource：缓冲图像亮度源
             * 将 java.awt.image.BufferedImage 转为 zxing 的 缓冲图像亮度源
             * 关键就是下面这几句：HybridBinarizer 用于读取二维码图像数据，BinaryBitmap 二进制位图
             */
        BufferedImageLuminanceSource source = new BufferedImageLuminanceSource(bufferedImage);
        BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
        Hashtable hints = new Hashtable();
        /*
             * 如果内容包含中文，则解码的字符集格式应该和编码时一致
             */
        hints.put(DecodeHintType.CHARACTER_SET, "UTF-8");
        /*
             * 如果图片不是二维码图片，则 decode 抛异常：com.google.zxing.NotFoundException
             * MultiFormatWriter 的 encode 用于对内容进行编码成 2D 矩阵
             * MultiFormatReader 的 decode 用于读取二进制位图数据
             */
        Result result = new MultiFormatReader().decode(bitmap, hints);
        resultStr = result.getText();
    } catch (IOException e) {
        e.printStackTrace();
        log.error("二维码图片地址错误, 地址是: {}!", url);
    } catch (NotFoundException e) {
        e.printStackTrace();
        log.error("图片非二维码图片, 地址是: {}!", url);
    }
    return resultStr;
}