在OCR文本检测中，EntityAnnotation类的getScore（）API属于谷歌视觉API始终返回零。如何解决？

Question

我正在使用谷歌视觉API进行图像的文本检测，它以JSON格式给出响应。因此，此响应属于com.google.cloud.vision.v1.EntityAnnotation.From EntityAnnotation对象，我试图使用EntityAnnotation的getScore（）获取值。但是，每次返回0时，我都期望某个浮点值而不是0。有人遇到过类似的问题吗？ 要了解Google视觉文本检测API，您可以阅读以下https://cloud.google.com/vision/docs/ocr 感谢帮助。谢谢。

        try (FileInputStream inputStream = new FileInputStream(filePath);
                        ImageAnnotatorClient client = ImageAnnotatorClient.create()) {
            final ByteString imageBytes = ByteString.readFrom(inputStream);
            final Image image = Image.newBuilder().setContent(imageBytes).build();
            final Feature feature = Feature.newBuilder().setType(TEXT_DETECTION).build();
            final AnnotateImageRequest request = AnnotateImageRequest.newBuilder().addFeatures(feature).setImage(image)
                    .build();
            requests.add(request);

            final BatchAnnotateImagesResponse response = client.batchAnnotateImages(requests);
            final List<AnnotateImageResponse> responseList = response.getResponsesList();

            result = responseList.get(0).getTextAnnotationsList();
            }

        final EntityAnnotation annotation = result.get(0);
        final Float confidence = annotation.getScore();