use of com.google.cloud.vision.v1p4beta1.AsyncBatchAnnotateImagesRequest in project java-vision by googleapis.
the class AsyncBatchAnnotateImagesGcs method asyncBatchAnnotateImagesGcs.
// Performs asynchronous batch annotation of images on Google Cloud Storage
public static void asyncBatchAnnotateImagesGcs(String gcsSourcePath, String gcsDestinationPath) throws Exception {
// String gcsDestinationPath = "gs://YOUR_BUCKET_ID/path_to_store_annotation";
try (ImageAnnotatorClient client = ImageAnnotatorClient.create()) {
List<AnnotateImageRequest> requests = new ArrayList<>();
ImageSource imgSource = ImageSource.newBuilder().setImageUri(gcsSourcePath).build();
Image image = Image.newBuilder().setSource(imgSource).build();
// Set the GCS destination path for where to save the results.
GcsDestination gcsDestination = GcsDestination.newBuilder().setUri(gcsDestinationPath).build();
// Create the configuration for the output with the batch size.
// The batch size sets how many pages should be grouped into each json output file.
OutputConfig outputConfig = OutputConfig.newBuilder().setGcsDestination(gcsDestination).setBatchSize(2).build();
// Select the Features required by the vision API
Feature features = Feature.newBuilder().setType(Type.LABEL_DETECTION).setType(Type.TEXT_DETECTION).setType(Type.IMAGE_PROPERTIES).build();
// Build the request
AnnotateImageRequest annotateImageRequest = AnnotateImageRequest.newBuilder().setImage(image).addFeatures(features).build();
requests.add(annotateImageRequest);
AsyncBatchAnnotateImagesRequest request = AsyncBatchAnnotateImagesRequest.newBuilder().addAllRequests(requests).setOutputConfig(outputConfig).build();
OperationFuture<AsyncBatchAnnotateImagesResponse, OperationMetadata> response = client.asyncBatchAnnotateImagesAsync(request);
System.out.println("Waiting for the operation to finish.");
// we're not processing the response, since we'll be reading the output from GCS.
response.get(180, TimeUnit.SECONDS);
// Once the request has completed and the output has been
// written to GCS, we can list all the output files.
Storage storage = StorageOptions.getDefaultInstance().getService();
// Get the destination location from the gcsDestinationPath
Pattern pattern = Pattern.compile("gs://([^/]+)/(.+)");
Matcher matcher = pattern.matcher(gcsDestinationPath);
if (matcher.find()) {
String bucketName = matcher.group(1);
String prefix = matcher.group(2);
// Get the list of objects with the given prefix from the GCS bucket
Bucket bucket = storage.get(bucketName);
Page<Blob> pageList = bucket.list(BlobListOption.prefix(prefix));
Blob firstOutputFile = null;
// List objects with the given prefix.
System.out.println("Output files:");
for (Blob blob : pageList.iterateAll()) {
System.out.println(blob.getName());
// the first two image requests
if (firstOutputFile == null) {
firstOutputFile = blob;
}
}
// Get the contents of the file and convert the JSON contents to an
// BatchAnnotateImagesResponse
// object. If the Blob is small read all its content in one request
// (Note: the file is a .json file)
// Storage guide: https://cloud.google.com/storage/docs/downloading-objects
String jsonContents = new String(firstOutputFile.getContent());
Builder builder = BatchAnnotateImagesResponse.newBuilder();
JsonFormat.parser().merge(jsonContents, builder);
// Build the AnnotateFileResponse object
BatchAnnotateImagesResponse batchAnnotateImagesResponse = builder.build();
// Here we print the response for the first image
// The response contains more information:
// annotation/pages/blocks/paragraphs/words/symbols/colors
// including confidence score and bounding boxes
System.out.format("\nResponse: %s\n", batchAnnotateImagesResponse.getResponses(0));
} else {
System.out.println("No MATCH");
}
} catch (Exception e) {
System.out.println("Error during asyncBatchAnnotateImagesGcs: \n" + e.toString());
}
}
use of com.google.cloud.vision.v1p4beta1.AsyncBatchAnnotateImagesRequest in project java-vision by googleapis.
the class AsyncBatchAnnotateImages method asyncBatchAnnotateImages.
public static void asyncBatchAnnotateImages(String inputImageUri, String outputUri) throws IOException, ExecutionException, InterruptedException {
// the "close" method on the client to safely clean up any remaining background resources.
try (ImageAnnotatorClient imageAnnotatorClient = ImageAnnotatorClient.create()) {
// You can send multiple images to be annotated, this sample demonstrates how to do this with
// one image. If you want to use multiple images, you have to create a `AnnotateImageRequest`
// object for each image that you want annotated.
// First specify where the vision api can find the image
ImageSource source = ImageSource.newBuilder().setImageUri(inputImageUri).build();
Image image = Image.newBuilder().setSource(source).build();
// Set the type of annotation you want to perform on the image
// https://cloud.google.com/vision/docs/reference/rpc/google.cloud.vision.v1#google.cloud.vision.v1.Feature.Type
Feature feature = Feature.newBuilder().setType(Feature.Type.LABEL_DETECTION).build();
// Build the request object for that one image. Note: for additional images you have to create
// additional `AnnotateImageRequest` objects and store them in a list to be used below.
AnnotateImageRequest imageRequest = AnnotateImageRequest.newBuilder().setImage(image).addFeatures(feature).build();
// Set where to store the results for the images that will be annotated.
GcsDestination gcsDestination = GcsDestination.newBuilder().setUri(outputUri).build();
OutputConfig outputConfig = OutputConfig.newBuilder().setGcsDestination(gcsDestination).setBatchSize(// The max number of responses to output in each JSON file
2).build();
// Add each `AnnotateImageRequest` object to the batch request and add the output config.
AsyncBatchAnnotateImagesRequest request = AsyncBatchAnnotateImagesRequest.newBuilder().addRequests(imageRequest).setOutputConfig(outputConfig).build();
// Make the asynchronous batch request.
AsyncBatchAnnotateImagesResponse response = imageAnnotatorClient.asyncBatchAnnotateImagesAsync(request).get();
// The output is written to GCS with the provided output_uri as prefix
String gcsOutputUri = response.getOutputConfig().getGcsDestination().getUri();
System.out.format("Output written to GCS with prefix: %s%n", gcsOutputUri);
}
}
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