Examples with RGBLuminanceSource com.google.zxing.zxing.image.RGBLuminanceSource used on opensource projects

Example 1 with RGBLuminanceSource

use of com.google.zxing.zxing.image.RGBLuminanceSource in project QRCode by 5peak2me.

the class MipcaActivityCapture method scanningImage.

/**
	 * 扫描二维码图片的方法
	 * @param path
	 * @return
	 */
public Result scanningImage(String path) {
    if (TextUtils.isEmpty(path)) {
        return null;
    }
    Hashtable<DecodeHintType, String> hints = new Hashtable<DecodeHintType, String>();
    //设置二维码内容的编码
    hints.put(DecodeHintType.CHARACTER_SET, "UTF8");
    BitmapFactory.Options options = new BitmapFactory.Options();
    // 先获取原大小
    options.inJustDecodeBounds = true;
    scanBitmap = BitmapFactory.decodeFile(path, options);
    // 获取新的大小
    options.inJustDecodeBounds = false;
    int sampleSize = (int) (options.outHeight / (float) 200);
    if (sampleSize <= 0)
        sampleSize = 1;
    options.inSampleSize = sampleSize;
    scanBitmap = BitmapFactory.decodeFile(path, options);
    RGBLuminanceSource source = new RGBLuminanceSource(scanBitmap);
    BinaryBitmap bitmap1 = new BinaryBitmap(new HybridBinarizer(source));
    QRCodeReader reader = new QRCodeReader();
    try {
        return reader.decode(bitmap1, hints);
    } catch (NotFoundException e) {
        e.printStackTrace();
    } catch (ChecksumException e) {
        e.printStackTrace();
    } catch (FormatException e) {
        e.printStackTrace();
    }
    return null;
}