如何从Android中的Vision OCR结果文本中提取名称，电话号码和电子邮件地址

Question

这是我想获取详细信息的示例代码...

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    if (requestCode == PHOTO_REQUEST && resultCode == RESULT_OK) {
        launchMediaScanIntent();
        try {
            Bitmap bitmap = decodeBitmapUri(this, imageUri);
            if (detector.isOperational() && bitmap != null) {
                Frame frame = new Frame.Builder().setBitmap(bitmap).build();
                SparseArray<TextBlock> textBlocks = detector.detect(frame);
                String blocks = "";
                String lines = "";
                String words = "";
                for (int index = 0; index < textBlocks.size(); index++) {
                    //extract scanned text blocks here
                    TextBlock tBlock = textBlocks.valueAt(index);
                    blocks = blocks + tBlock.getValue() + "n" + "n";
                    for (Text line : tBlock.getComponents()) {
                        //extract scanned text lines here
                        lines = lines + line.getValue() + "n";
                        for (Text element : line.getComponents()) {
                            //extract scanned text words here
                            words = words + element.getValue() + ", ";
                        }
                    }
                }

                if (textBlocks.size() == 0) {
                    scanResults.setText("Scan Failed: Found nothing to scan");
                } else {
                    scanResults.setText(scanResults.getText() + "Blocks: " + "n");
                    scanResults.setText(scanResults.getText() + blocks + "n");
                    scanResults.setText(scanResults.getText() + "---------" + "n");
                    scanResults.setText(scanResults.getText() + "Lines: " + "n");
                    scanResults.setText(scanResults.getText() + lines + "n");
                    scanResults.setText(scanResults.getText() + "---------" + "n");
                    scanResults.setText(scanResults.getText() + "Words: " + "n");
                    scanResults.setText(scanResults.getText() + words + "n");
                    scanResults.setText(scanResults.getText() + "---------" + "n");
                }
            } else {
                scanResults.setText("Could not set up the detector!");
            }
        } catch (Exception e) {
            Toast.makeText(this, "Failed to load Image", Toast.LENGTH_SHORT).show();
            Log.e(LOG_TAG, e.toString());
        }
    }
}

Answer 1

您有很好的库来解析链接（电子邮件，网站等），例如org.nibor.autolink关于数字，您可以看一下LibphoneNumber。它由Google提出，并由Android使用。如果您提供该国，则可以为您分析该数字的任何格式。

关于名称，这很困难。如果您仅将应用程序用于一个国家/地区，则可以创建一个具有名称的数据库（在法国，我们在Opendata中有一个由公共服务提出的文件），但它不会完成...