/** 解析QRCode二维码 */
@SuppressWarnings("unchecked")
public 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());
}
}
private static void assertCorrectImage2string(String path, String expected)
throws IOException, NotFoundException {
File file = new File(path);
if (!file.exists()) {
// Support running from project root too
file = new File("core", path);
}
BufferedImage image = ImageIO.read(file);
BinaryBitmap binaryMap =
new BinaryBitmap(new GlobalHistogramBinarizer(new BufferedImageLuminanceSource(image)));
int rowNumber = binaryMap.getHeight() / 2;
BitArray row = binaryMap.getBlackRow(rowNumber, null);
Result result;
try {
RSSExpandedReader rssExpandedReader = new RSSExpandedReader();
result = rssExpandedReader.decodeRow(rowNumber, row, null);
} catch (ReaderException re) {
fail(re.toString());
return;
}
assertSame(BarcodeFormat.RSS_EXPANDED, result.getBarcodeFormat());
assertEquals(expected, result.getText());
}
private static String getDecodeText(File file) {
BufferedImage image;
try {
image = ImageReader.readImage(file);
} catch (IOException ioe) {
return ioe.toString();
}
LuminanceSource source = new BufferedImageLuminanceSource(image);
BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
Result result;
try {
result = new MultiFormatReader().decode(bitmap);
} catch (ReaderException re) {
return re.toString();
}
return String.valueOf(result.getText());
}
public String attemptDecodePicture(Bitmap thumbnail) {
if (thumbnail == null) {
Log.d(TAG, "No picture selected");
} else {
Log.d(TAG, "Picture selected");
Result rawResult = null;
Reader reader = new QRCodeReader();
int w = thumbnail.getWidth();
int h = thumbnail.getHeight();
int maxOneDimension = 500;
if (w * h > maxOneDimension * maxOneDimension) { // too big, reduce
float bitmapRatio = (float) w / (float) h;
if (bitmapRatio > 0) {
w = maxOneDimension;
h = (int) (w / bitmapRatio);
} else {
h = maxOneDimension;
w = (int) (h * bitmapRatio);
}
thumbnail = Bitmap.createScaledBitmap(thumbnail, w, h, true);
}
int[] pixels = new int[w * h];
thumbnail.getPixels(pixels, 0, w, 0, 0, w, h);
RGBLuminanceSource source = new RGBLuminanceSource(w, h, pixels);
if (source.getMatrix() != null) {
BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
try {
rawResult = reader.decode(bitmap);
} catch (ReaderException re) {
re.printStackTrace();
} finally {
reader.reset();
}
}
if (rawResult != null) {
Log.d(TAG, "QR code found " + rawResult.getText());
return rawResult.getText();
} else {
Log.d(TAG, "Picture No QR code found");
}
}
return null;
}
/**
* 解码
*
* @param filePath
* @return
*/
@SuppressWarnings({"rawtypes", "unchecked"})
public static String decode(String filePath) {
BufferedImage image;
try {
image = ImageIO.read(new File(filePath));
} catch (IOException ioe) {
return ioe.toString();
}
if (image == null) {
return "Could not decode image";
}
LuminanceSource source = new BufferedImageLuminanceSource(image);
BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
Result result;
try {
Hashtable hints = new Hashtable();
hints.put(EncodeHintType.CHARACTER_SET, ToolString.encoding);
result = new MultiFormatReader().decode(bitmap, hints);
} catch (ReaderException re) {
return re.toString();
}
return result.getText();
}
