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Java QRCodeReader.decode方法代碼示例

本文整理匯總了Java中com.google.zxing.qrcode.QRCodeReader.decode方法的典型用法代碼示例。如果您正苦於以下問題：Java QRCodeReader.decode方法的具體用法？Java QRCodeReader.decode怎麽用？Java QRCodeReader.decode使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類com.google.zxing.qrcode.QRCodeReader的用法示例。


在下文中一共展示了QRCodeReader.decode方法的15個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Java代碼示例。

示例1: scanningImage

import com.google.zxing.qrcode.QRCodeReader; //導入方法依賴的package包/類
protected Result scanningImage(Uri path) {
    if (path == null || path.equals("")) {
        return null;
    }
    // DecodeHintType 和EncodeHintType
    Hashtable<DecodeHintType, String> hints = new Hashtable<DecodeHintType, String>();
    hints.put(DecodeHintType.CHARACTER_SET, "utf-8"); // 設置二維碼內容的編碼
    try {
        Bitmap scanBitmap = BitmapFactory.decodeStream(getContentResolver().openInputStream(uri));

        RGBLuminanceSource source = new RGBLuminanceSource(scanBitmap);
        BinaryBitmap bitmap1 = new BinaryBitmap(new HybridBinarizer(source));
        QRCodeReader reader = new QRCodeReader();
        return reader.decode(bitmap1, hints);

    } catch (Exception e) {
        e.printStackTrace();
    }
    return null;
}
開發者ID:guzhigang001，項目名稱:Zxing，代碼行數:21，代碼來源:CaptureActivity.java

示例2: readQrCode

import com.google.zxing.qrcode.QRCodeReader; //導入方法依賴的package包/類
/**
 * 讀取二維碼
 * @param qrCodeFile
 * @return
 */
public String readQrCode(File qrCodeFile){
	String ret = null;
	try {			
		QRCodeReader reader = new QRCodeReader();
		BufferedImage image = ImageIO.read(qrCodeFile);
		LuminanceSource source = new BufferedImageLuminanceSource(image);
		Binarizer binarizer = new HybridBinarizer(source);
		BinaryBitmap imageBinaryBitmap = new BinaryBitmap(binarizer);
		Result result = reader.decode(imageBinaryBitmap);
		ret = result.getText();
	} catch (IOException |NotFoundException | ChecksumException | FormatException e) {
		Exceptions.printException(e);
	}
	return ret;		
}
開發者ID:simbest，項目名稱:simbest-cores，代碼行數:21，代碼來源:QrCodeUtil.java

示例3: scanningImage

import com.google.zxing.qrcode.QRCodeReader; //導入方法依賴的package包/類
/**
 * 掃描二維碼圖片的方法
 * 
 * @param path
 * @return
 */
public Result scanningImage(String path) {
	try {
		if (TextUtils.isEmpty(path)) {
			return null;
		}
		Hashtable<DecodeHintType, String> hints = new Hashtable<DecodeHintType, String>();
		hints.put(DecodeHintType.CHARACTER_SET, "UTF8"); // 設置二維碼內容的編碼

		InputStream is = new FileInputStream(path);
		BitmapFactory.Options options = new BitmapFactory.Options();
		options.inJustDecodeBounds = false;
		// width,hight設為原來的十分一
		options.inSampleSize = 10;
		scanBitmap = BitmapFactory.decodeStream(is, null, options);
		RGBLuminanceSource source = new RGBLuminanceSource(scanBitmap);
		BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
		QRCodeReader reader = new QRCodeReader();
		return reader.decode(bitmap, hints);

	} catch (Exception e) {
		e.printStackTrace();
	}
	return null;
}
開發者ID:cxbiao，項目名稱:Android_Study_Demos，代碼行數:31，代碼來源:CaptureActivity.java

示例4: decode

import com.google.zxing.qrcode.QRCodeReader; //導入方法依賴的package包/類
/**
 * Decodes a QR code from a BufferedImage object.
 * 
 * @param image
 * @return a Result object containing the decoded data or information about
 *         an unsuccessful decoding attempt
 * @throws Exception
 */
private Result decode(BufferedImage image) throws Exception {

	// create a luminance source from the BufferedImage
	LuminanceSource lumSource = new BufferedImageLuminanceSource(image);
	// create a binary bitmap from the luminance source. a Binarizer
	// converts luminance data to 1 bit data.
	BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(lumSource));

	// a reader for decoding
	QRCodeReader reader = new QRCodeReader();

	// attempt decoding and return result
	Hashtable<DecodeHintType, Boolean> hints = new Hashtable<DecodeHintType, Boolean>();
	hints.put(DecodeHintType.TRY_HARDER, true);
	return reader.decode(bitmap, hints);
}
開發者ID:karoliina，項目名稱:qr-code-reader，代碼行數:25，代碼來源:QRDecoder.java

示例5: decode

import com.google.zxing.qrcode.QRCodeReader; //導入方法依賴的package包/類
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 "";
    }
開發者ID:bither，項目名稱:bither-desktop-java，代碼行數:23，代碼來源:QRCodeEncoderDecoder.java

示例6: decode

import com.google.zxing.qrcode.QRCodeReader; //導入方法依賴的package包/類
private String decode(byte[] data, int width, int height) {
    ScannerManager manager = mManager.get();
    if (manager == null) {
        return null;
    }
    Rect rect = manager.getFramingRectInPreview();
    PlanarYUVLuminanceSource source = new PlanarYUVLuminanceSource(data,
            width, height, rect.left, rect.top, rect.right, rect.bottom, false);
    BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
    QRCodeReader reader = new QRCodeReader();
    try {
        Result result = reader.decode(bitmap, mHints);
        return result.getText();
    } catch (ReaderException e) {
        // Ignore as we will repeatedly decode the preview frame
        return null;
    }
}
開發者ID:googlesamples，項目名稱:attendee-checkin，代碼行數:19，代碼來源:ScannerManager.java

示例7: readQRCode

import com.google.zxing.qrcode.QRCodeReader; //導入方法依賴的package包/類
/**
 * Versucht aus dem �bergeben BufferedImage ein QR Code zu finden und �bersetzt dieses in einen String.
 * 
 * @param qrcodeImage : BufferedImage 
 * @return String mit dem Inhalt des QRCodes
 * @throws Exception 
 */
private static String readQRCode(BufferedImage qrcodeImage) throws Exception{
	//Die Parameter anlegen
	Hashtable<DecodeHintType, Object> hintMap = new Hashtable<DecodeHintType, Object>();
       hintMap.put(DecodeHintType.TRY_HARDER, Boolean.TRUE);
       
	//Bild zu BinaryBitmap verwandeln
	BufferedImageLuminanceSource source = new BufferedImageLuminanceSource(qrcodeImage);
	BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));

	//QR Leser initialisieren...
	QRCodeReader reader = new QRCodeReader();
	Result result;
	//...und lesen:
	result = reader.decode(bitmap,hintMap);
	
	return result.getText();
}
開發者ID:SecUSo，項目名稱:EasyVote，代碼行數:25，代碼來源:VotingQRCode.java

示例8: decode

import com.google.zxing.qrcode.QRCodeReader; //導入方法依賴的package包/類
public 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);
            log.info("Decoded image successfully, result was : '" + result.getText() + "'");

            return result.getText();
        } catch (ReaderException e) {
            // the data is improperly formatted
            log.debug(e.getMessage());
            log.error("Error while decoding image", e);
        }

        return "";
    }
開發者ID:coinspark，項目名稱:sparkbit，代碼行數:25，代碼來源:QRCodeEncoderDecoder.java

示例9: decodeImage

import com.google.zxing.qrcode.QRCodeReader; //導入方法依賴的package包/類
/**
 * Decode the data within the viewfinder rectangle, and time how long it took. For efficiency, reuse the same reader
 * objects from one decode to the next.
 */
public static Result decodeImage(byte[] data, int width, int height) {
    // 處理
    Result result = null;
    try {
        Hashtable<DecodeHintType, Object> hints = new Hashtable<DecodeHintType, Object>();
        hints.put(DecodeHintType.CHARACTER_SET, "utf-8");
        hints.put(DecodeHintType.TRY_HARDER, Boolean.TRUE);
        hints.put(DecodeHintType.POSSIBLE_FORMATS, BarcodeFormat.QR_CODE);
        PlanarYUVLuminanceSource source =
                new PlanarYUVLuminanceSource(data, width, height, 0, 0, width, height, false);
        /**
         * HybridBinarizer算法使用了更高級的算法，但使用GlobalHistogramBinarizer識別效率確實比HybridBinarizer要高一些。
         *
         * GlobalHistogram算法：（http://kuangjianwei.blog.163.com/blog/static/190088953201361015055110/）
         *
         * 二值化的關鍵就是定義出黑白的界限，我們的圖像已經轉化為了灰度圖像，每個點都是由一個灰度值來表示，就需要定義出一個灰度值，大於這個值就為白（0），低於這個值就為黑（1）。
         * 在GlobalHistogramBinarizer中，是從圖像中均勻取5行（覆蓋整個圖像高度），每行取中間五分之四作為樣本；以灰度值為X軸，每個灰度值的像素個數為Y軸建立一個直方圖，
         * 從直方圖中取點數最多的一個灰度值，然後再去給其他的灰度值進行分數計算，按照點數乘以與最多點數灰度值的距離的平方來進行打分，選分數最高的一個灰度值。接下來在這兩個灰度值中間選取一個區分界限，
         * 取的原則是盡量靠近中間並且要點數越少越好。界限有了以後就容易了，與整幅圖像的每個點進行比較，如果灰度值比界限小的就是黑，在新的矩陣中將該點置1，其餘的就是白，為0。
         */
        BinaryBitmap bitmap1 = new BinaryBitmap(new GlobalHistogramBinarizer(source));
        // BinaryBitmap bitmap1 = new BinaryBitmap(new HybridBinarizer(source));
        QRCodeReader reader2 = new QRCodeReader();
        result = reader2.decode(bitmap1, hints);
    } catch (ReaderException e) {
    }
    return result;
}
開發者ID:simplezhli，項目名稱:Tesseract-OCR-Scanner，代碼行數:33，代碼來源:QrUtils.java

示例10: decodeImage

import com.google.zxing.qrcode.QRCodeReader; //導入方法依賴的package包/類
/**
 * Decode the data within the viewfinder rectangle, and time how long it took. For efficiency, reuse the same reader
 * objects from one decode to the next.
 */
public static Result decodeImage(byte[] data, int width, int height) {
    // 處理
    Result result = null;
    try {
        Hashtable<DecodeHintType, Object> hints = new Hashtable<DecodeHintType, Object>();
        hints.put(DecodeHintType.CHARACTER_SET, "utf-8");
        hints.put(DecodeHintType.TRY_HARDER, Boolean.TRUE);
        hints.put(DecodeHintType.POSSIBLE_FORMATS, BarcodeFormat.QR_CODE);
        PlanarYUVLuminanceSource source =
            new PlanarYUVLuminanceSource(data, width, height, 0, 0, width, height, false);
        /**
         * HybridBinarizer算法使用了更高級的算法，但使用GlobalHistogramBinarizer識別效率確實比HybridBinarizer要高一些。
         * 
         * GlobalHistogram算法：（http://kuangjianwei.blog.163.com/blog/static/190088953201361015055110/）
         * 
         * 二值化的關鍵就是定義出黑白的界限，我們的圖像已經轉化為了灰度圖像，每個點都是由一個灰度值來表示，就需要定義出一個灰度值，大於這個值就為白（0），低於這個值就為黑（1）。
         * 在GlobalHistogramBinarizer中，是從圖像中均勻取5行（覆蓋整個圖像高度），每行取中間五分之四作為樣本；以灰度值為X軸，每個灰度值的像素個數為Y軸建立一個直方圖，
         * 從直方圖中取點數最多的一個灰度值，然後再去給其他的灰度值進行分數計算，按照點數乘以與最多點數灰度值的距離的平方來進行打分，選分數最高的一個灰度值。接下來在這兩個灰度值中間選取一個區分界限，
         * 取的原則是盡量靠近中間並且要點數越少越好。界限有了以後就容易了，與整幅圖像的每個點進行比較，如果灰度值比界限小的就是黑，在新的矩陣中將該點置1，其餘的就是白，為0。
         */
        BinaryBitmap bitmap1 = new BinaryBitmap(new GlobalHistogramBinarizer(source));
        // BinaryBitmap bitmap1 = new BinaryBitmap(new HybridBinarizer(source));
        QRCodeReader reader2 = new QRCodeReader();
        result = reader2.decode(bitmap1, hints);
    } catch (ReaderException e) {
    }
    return result;
}
開發者ID:yiwent，項目名稱:Mobike，代碼行數:33，代碼來源:QrUtils.java

示例11: scanningImage

import com.google.zxing.qrcode.QRCodeReader; //導入方法依賴的package包/類
protected Result scanningImage(String path) {
    if (StringUtil.isBlank(path)) {
        return null;
    }
    // DecodeHintType 和EncodeHintType
    Hashtable<DecodeHintType, String> hints = new Hashtable<DecodeHintType, String>();
    hints.put(DecodeHintType.CHARACTER_SET, "utf-8"); // 設置二維碼內容的編碼
    BitmapFactory.Options options = new BitmapFactory.Options();
    options.inJustDecodeBounds = true; // 先獲取原大小
    scanBitmap = BitmapFactory.decodeFile(path, options);
    options.inJustDecodeBounds = false; // 獲取新的大小

    int sampleSize = (int) (options.outHeight / (float) 200);

    if (sampleSize <= 0)
        sampleSize = 1;
    options.inSampleSize = sampleSize;
    scanBitmap = BitmapFactory.decodeFile(path, options);
    int width = scanBitmap.getWidth(), height = scanBitmap.getHeight();
    int[] pixels = new int[width * height];
    scanBitmap.getPixels(pixels, 0, width, 0, 0, width, height);
    scanBitmap.recycle();
    scanBitmap = null;
    RGBLuminanceSource source = new RGBLuminanceSource(width, height, pixels);
    BinaryBitmap bitmap1 = new BinaryBitmap(new HybridBinarizer(source));
    QRCodeReader reader = new QRCodeReader();
    try {
        return reader.decode(bitmap1, hints);
    } catch (Exception e) {
        e.printStackTrace();
    }
    return null;
}
開發者ID:jianliaoim，項目名稱:talk-android，代碼行數:34，代碼來源:ScannerActivity.java

示例12: decodeQRCodeImage

import com.google.zxing.qrcode.QRCodeReader; //導入方法依賴的package包/類
/**
 * 解碼 QRCode 圖片，解析出其內容
 *
 * @param imageURI QRCode 圖片 URI
 * @return 解析後的內容
 * @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 "";
}
開發者ID:h819，項目名稱:spring-boot，代碼行數:22，代碼來源:MyQRCodeUtils.java

示例13: getStringFromQRCode

import com.google.zxing.qrcode.QRCodeReader; //導入方法依賴的package包/類
public static String getStringFromQRCode(String path) {
        String httpString = null;

        Bitmap bmp = convertToBitmap(path);
        byte[] data = getYUV420sp(bmp.getWidth(), bmp.getHeight(), bmp);
        // 處理
        try {
            Hashtable<DecodeHintType, Object> hints = new Hashtable<DecodeHintType, Object>();
//            hints.put(DecodeHintType.CHARACTER_SET, "utf-8");
            hints.put(DecodeHintType.TRY_HARDER, Boolean.TRUE);
            hints.put(DecodeHintType.POSSIBLE_FORMATS, BarcodeFormat.QR_CODE);
            PlanarYUVLuminanceSource source = new PlanarYUVLuminanceSource(data,
                    bmp.getWidth(),
                    bmp.getHeight(),
                    0, 0,
                    bmp.getWidth(),
                    bmp.getHeight(),
                    false);
            BinaryBitmap bitmap1 = new BinaryBitmap(new HybridBinarizer(source));
            QRCodeReader reader2= new QRCodeReader();
            Result result = reader2.decode(bitmap1, hints);

            httpString = result.getText();
        } catch (Exception e) {
            e.printStackTrace();
        }

        bmp.recycle();
        bmp = null;

        return httpString;
    }
開發者ID:react-native-component，項目名稱:react-native-smart-barcode，代碼行數:33，代碼來源:DecodeUtil.java

示例14: decodePureBitmap

import com.google.zxing.qrcode.QRCodeReader; //導入方法依賴的package包/類
public static Result decodePureBitmap(Bitmap bmp) throws FormatException, ChecksumException, NotFoundException {
    int width = bmp.getWidth(), height = bmp.getHeight();
    int[] pixels = new int[width * height];
    bmp.getPixels(pixels, 0, width, 0, 0, width, height);
    RGBLuminanceSource source = new RGBLuminanceSource(width, height, pixels);
    QRCodeReader reader = new QRCodeReader();
    BinaryBitmap binaryBitmap = new BinaryBitmap(new HybridBinarizer(source));
    Map<DecodeHintType, Object> hints = new EnumMap<>(DecodeHintType.class);
    hints.put(DecodeHintType.PURE_BARCODE, Boolean.TRUE);
    return reader.decode(binaryBitmap, hints);
}
開發者ID:timberdoodle，項目名稱:TimberdoodleApp，代碼行數:12，代碼來源:QRReaderWriterTests.java

示例15: doInBackground

import com.google.zxing.qrcode.QRCodeReader; //導入方法依賴的package包/類
@Override
protected Result doInBackground(Uri... params) {
    if (params == null || params.length != 1) {
        return null;
    }

    try {
        InputStream inputStream = QRScanActivity.this.getContentResolver().openInputStream(params[0]);
        BitmapFactory.Options options = new BitmapFactory.Options();
        options.inJustDecodeBounds = true;
        Rect padding = new Rect(0, 0, 0, 0);
        BitmapFactory.decodeStream(inputStream, null, options);
        inputStream.close();
        int minLength = Math.min(options.outWidth, options.outHeight);
        int MAX = 512; // 圖片短邊不超過 512
        if (minLength > MAX) {
            options.inSampleSize = minLength / MAX;
        }
        options.inJustDecodeBounds = false;
        // 流打開後隻能用一次, 需要重新獲取
        inputStream = QRScanActivity.this.getContentResolver().openInputStream(params[0]);
        // 對圖片裁剪後再掃碼, 否則花的時間太長
        Bitmap bitmap = BitmapFactory.decodeStream(inputStream, null, options);
        if (bitmap == null) {
            return null;
        }

        int width = bitmap.getWidth(), height = bitmap.getHeight();
        int[] pixels = new int[width * height];
        bitmap.getPixels(pixels, 0, width, 0, 0, width, height);
        bitmap.recycle();

        RGBLuminanceSource source = new RGBLuminanceSource(width, height, pixels);
        BinaryBitmap bBitmap = new BinaryBitmap(new HybridBinarizer(source));
        QRCodeReader reader = new QRCodeReader();
        Result result = reader.decode(bBitmap);
        return result;
    } catch (Exception e) {
        Log.e(TAG, "can not open file", e);
        return null;
    }
}
開發者ID:huang303513，項目名稱:Coding-Android，代碼行數:43，代碼來源:QRScanActivity.java


注：本文中的com.google.zxing.qrcode.QRCodeReader.decode方法示例由純淨天空整理自Github/MSDocs等開源代碼及文檔管理平台，相關代碼片段篩選自各路編程大神貢獻的開源項目，源碼版權歸原作者所有，傳播和使用請參考對應項目的License；未經允許，請勿轉載。