Examples with AnnotateImageResponse com.google.cloud.vision.v1p3beta1.AnnotateImageResponse used on opensource projects

Example 1 with AnnotateImageResponse

use of com.google.cloud.vision.v1p3beta1.AnnotateImageResponse in project spring-cloud-gcp by spring-cloud.

the class VisionController method uploadImage.

/**
 * This method downloads an image from a URL and sends its contents to the Vision API for label detection.
 *
 * @param imageUrl the URL of the image
 * @return a string with the list of labels and percentage of certainty
 * @throws Exception if the Vision API call produces an error
 */
@GetMapping("/vision")
public String uploadImage(String imageUrl) throws Exception {
    // Copies the content of the image to memory.
    byte[] imageBytes = StreamUtils.copyToByteArray(this.resourceLoader.getResource(imageUrl).getInputStream());
    BatchAnnotateImagesResponse responses;
    Image image = Image.newBuilder().setContent(ByteString.copyFrom(imageBytes)).build();
    // Sets the type of request to label detection, to detect broad sets of categories in an image.
    Feature feature = Feature.newBuilder().setType(Feature.Type.LABEL_DETECTION).build();
    AnnotateImageRequest request = AnnotateImageRequest.newBuilder().setImage(image).addFeatures(feature).build();
    responses = this.imageAnnotatorClient.batchAnnotateImages(Collections.singletonList(request));
    StringBuilder responseBuilder = new StringBuilder("<table border=\"1\">");
    responseBuilder.append("<tr><th>description</th><th>score</th></tr>");
    // We're only expecting one response.
    if (responses.getResponsesCount() == 1) {
        AnnotateImageResponse response = responses.getResponses(0);
        if (response.hasError()) {
            throw new Exception(response.getError().getMessage());
        }
        for (EntityAnnotation annotation : response.getLabelAnnotationsList()) {
            responseBuilder.append("<tr><td>").append(annotation.getDescription()).append("</td><td>").append(annotation.getScore()).append("</td></tr>");
        }
    }
    responseBuilder.append("</table>");
    responseBuilder.append("<p><img src='" + imageUrl + "'/></p>");
    return responseBuilder.toString();
}

Example 2 with AnnotateImageResponse

use of com.google.cloud.vision.v1p3beta1.AnnotateImageResponse in project google-cloud-java by GoogleCloudPlatform.

the class AnnotateImage method main.

public static void main(String... args) throws Exception {
    // Instantiates a client
    ImageAnnotatorClient vision = ImageAnnotatorClient.create();
    // The path to the image file to annotate
    // for example "./resources/wakeupcat.jpg";
    String fileName = "your/image/path.jpg";
    // Reads the image file into memory
    Path path = Paths.get(fileName);
    byte[] data = Files.readAllBytes(path);
    ByteString imgBytes = ByteString.copyFrom(data);
    // Builds the image annotation request
    List<AnnotateImageRequest> requests = new ArrayList<>();
    Image img = Image.newBuilder().setContent(imgBytes).build();
    Feature feat = Feature.newBuilder().setType(Type.LABEL_DETECTION).build();
    AnnotateImageRequest request = AnnotateImageRequest.newBuilder().addFeatures(feat).setImage(img).build();
    requests.add(request);
    // Performs label detection on the image file
    BatchAnnotateImagesResponse response = vision.batchAnnotateImages(requests);
    List<AnnotateImageResponse> responses = response.getResponsesList();
    for (AnnotateImageResponse res : responses) {
        if (res.hasError()) {
            System.out.printf("Error: %s\n", res.getError().getMessage());
            return;
        }
        for (EntityAnnotation annotation : res.getLabelAnnotationsList()) {
            for (Map.Entry<FieldDescriptor, Object> entry : annotation.getAllFields().entrySet()) {
                System.out.printf("%s : %s\n", entry.getKey(), entry.getValue());
            }
        }
    }
}

Example 3 with AnnotateImageResponse

use of com.google.cloud.vision.v1p3beta1.AnnotateImageResponse in project spring-cloud-gcp by spring-cloud.

the class CloudVisionTemplate method extractTextFromImage.

/**
 * Extract the text out of an image and return the result as a String.
 * @param imageResource the image one wishes to analyze
 * @param imageContext the image context to customize the text extraction request
 * @return the text extracted from the image aggregated to a String
 * @throws CloudVisionException if the image could not be read or if text extraction failed
 */
public String extractTextFromImage(Resource imageResource, ImageContext imageContext) {
    AnnotateImageResponse response = analyzeImage(imageResource, imageContext, Type.TEXT_DETECTION);
    String result = response.getFullTextAnnotation().getText();
    if (result.isEmpty() && response.getError().getCode() != Code.OK.getNumber()) {
        throw new CloudVisionException(response.getError().getMessage());
    }
    return result;
}

Example 4 with AnnotateImageResponse

use of com.google.cloud.vision.v1p3beta1.AnnotateImageResponse in project java-docs-samples by GoogleCloudPlatform.

the class Detect method detectDocumentText.

// [START vision_detect_document]
/**
 * Performs document text detection on a local image file.
 *
 * @param filePath The path to the local file to detect document text on.
 * @param out A {@link PrintStream} to write the results to.
 * @throws Exception on errors while closing the client.
 * @throws IOException on Input/Output errors.
 */
public static void detectDocumentText(String filePath, PrintStream out) throws Exception, IOException {
    List<AnnotateImageRequest> requests = new ArrayList<>();
    ByteString imgBytes = ByteString.readFrom(new FileInputStream(filePath));
    Image img = Image.newBuilder().setContent(imgBytes).build();
    Feature feat = Feature.newBuilder().setType(Type.DOCUMENT_TEXT_DETECTION).build();
    AnnotateImageRequest request = AnnotateImageRequest.newBuilder().addFeatures(feat).setImage(img).build();
    requests.add(request);
    try (ImageAnnotatorClient client = ImageAnnotatorClient.create()) {
        BatchAnnotateImagesResponse response = client.batchAnnotateImages(requests);
        List<AnnotateImageResponse> responses = response.getResponsesList();
        client.close();
        for (AnnotateImageResponse res : responses) {
            if (res.hasError()) {
                out.printf("Error: %s\n", res.getError().getMessage());
                return;
            }
            // For full list of available annotations, see http://g.co/cloud/vision/docs
            TextAnnotation annotation = res.getFullTextAnnotation();
            for (Page page : annotation.getPagesList()) {
                String pageText = "";
                for (Block block : page.getBlocksList()) {
                    String blockText = "";
                    for (Paragraph para : block.getParagraphsList()) {
                        String paraText = "";
                        for (Word word : para.getWordsList()) {
                            String wordText = "";
                            for (Symbol symbol : word.getSymbolsList()) {
                                wordText = wordText + symbol.getText();
                                out.format("Symbol text: %s (confidence: %f)\n", symbol.getText(), symbol.getConfidence());
                            }
                            out.format("Word text: %s (confidence: %f)\n\n", wordText, word.getConfidence());
                            paraText = String.format("%s %s", paraText, wordText);
                        }
                        // Output Example using Paragraph:
                        out.println("\nParagraph: \n" + paraText);
                        out.format("Paragraph Confidence: %f\n", para.getConfidence());
                        blockText = blockText + paraText;
                    }
                    pageText = pageText + blockText;
                }
            }
            out.println("\nComplete annotation:");
            out.println(annotation.getText());
        }
    }
}

Example 5 with AnnotateImageResponse

use of com.google.cloud.vision.v1p3beta1.AnnotateImageResponse in project java-docs-samples by GoogleCloudPlatform.

the class Detect method detectLabelsGcs.

/**
 * Detects labels in the specified remote image on Google Cloud Storage.
 *
 * @param gcsPath The path to the remote file on Google Cloud Storage to perform label detection
 *                on.
 * @param out A {@link PrintStream} to write detected features to.
 * @throws Exception on errors while closing the client.
 * @throws IOException on Input/Output errors.
 */
public static void detectLabelsGcs(String gcsPath, PrintStream out) throws Exception, IOException {
    List<AnnotateImageRequest> requests = new ArrayList<>();
    ImageSource imgSource = ImageSource.newBuilder().setGcsImageUri(gcsPath).build();
    Image img = Image.newBuilder().setSource(imgSource).build();
    Feature feat = Feature.newBuilder().setType(Type.LABEL_DETECTION).build();
    AnnotateImageRequest request = AnnotateImageRequest.newBuilder().addFeatures(feat).setImage(img).build();
    requests.add(request);
    try (ImageAnnotatorClient client = ImageAnnotatorClient.create()) {
        BatchAnnotateImagesResponse response = client.batchAnnotateImages(requests);
        List<AnnotateImageResponse> responses = response.getResponsesList();
        for (AnnotateImageResponse res : responses) {
            if (res.hasError()) {
                out.printf("Error: %s\n", res.getError().getMessage());
                return;
            }
            // For full list of available annotations, see http://g.co/cloud/vision/docs
            for (EntityAnnotation annotation : res.getLabelAnnotationsList()) {
                annotation.getAllFields().forEach((k, v) -> out.printf("%s : %s\n", k, v.toString()));
            }
        }
    }
}