Examples with ByteString com.google.protobuf.ByteString used on opensource projects

Example 71 with ByteString

use of com.google.protobuf.ByteString in project java-docs-samples by GoogleCloudPlatform.

the class Detect method detectLabels.

/**
 * Detects labels in the specified local image.
 *
 * @param filePath The path to the file to perform label detection on.
 * @param out A {@link PrintStream} to write detected labels to.
 * @throws Exception on errors while closing the client.
 * @throws IOException on Input/Output errors.
 */
public static void detectLabels(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.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()));
            }
        }
    }
}

Example 72 with ByteString

use of com.google.protobuf.ByteString in project java-docs-samples by GoogleCloudPlatform.

the class Detect method detectProperties.

/**
 * Detects image properties such as color frequency from the specified local image.
 *
 * @param filePath The path to the file to detect properties.
 * @param out A {@link PrintStream} to write
 * @throws Exception on errors while closing the client.
 * @throws IOException on Input/Output errors.
 */
public static void detectProperties(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.IMAGE_PROPERTIES).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
            DominantColorsAnnotation colors = res.getImagePropertiesAnnotation().getDominantColors();
            for (ColorInfo color : colors.getColorsList()) {
                out.printf("fraction: %f\nr: %f, g: %f, b: %f\n", color.getPixelFraction(), color.getColor().getRed(), color.getColor().getGreen(), color.getColor().getBlue());
            }
        }
    }
}

Example 73 with ByteString

use of com.google.protobuf.ByteString in project java-docs-samples by GoogleCloudPlatform.

the class Detect method detectCropHints.

// [END vision_web_entities_include_geo_results_uri]
/**
 * Suggests a region to crop to for a local file.
 *
 * @param filePath The path to the local file used for web annotation detection.
 * @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 detectCropHints(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.CROP_HINTS).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
            CropHintsAnnotation annotation = res.getCropHintsAnnotation();
            for (CropHint hint : annotation.getCropHintsList()) {
                out.println(hint.getBoundingPoly());
            }
        }
    }
}

Example 74 with ByteString

use of com.google.protobuf.ByteString in project java-docs-samples by GoogleCloudPlatform.

the class Detect method detectWebEntitiesIncludeGeoResults.

// [START vision_web_entities_include_geo_results]
/**
 * Find web entities given a local image.
 * @param filePath The path of the image to detect.
 * @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 detectWebEntitiesIncludeGeoResults(String filePath, PrintStream out) throws Exception, IOException {
    // Instantiates a client
    try (ImageAnnotatorClient client = ImageAnnotatorClient.create()) {
        // Read in the local image
        ByteString contents = ByteString.readFrom(new FileInputStream(filePath));
        // Build the image
        Image image = Image.newBuilder().setContent(contents).build();
        // Enable `IncludeGeoResults`
        WebDetectionParams webDetectionParams = WebDetectionParams.newBuilder().setIncludeGeoResults(true).build();
        // Set the parameters for the image
        ImageContext imageContext = ImageContext.newBuilder().setWebDetectionParams(webDetectionParams).build();
        // Create the request with the image, imageContext, and the specified feature: web detection
        AnnotateImageRequest request = AnnotateImageRequest.newBuilder().addFeatures(Feature.newBuilder().setType(Type.WEB_DETECTION)).setImage(image).setImageContext(imageContext).build();
        // Perform the request
        BatchAnnotateImagesResponse response = client.batchAnnotateImages(Arrays.asList(request));
        // Display the results
        response.getResponsesList().stream().forEach(r -> r.getWebDetection().getWebEntitiesList().stream().forEach(entity -> {
            out.format("Description: %s\n", entity.getDescription());
            out.format("Score: %f\n", entity.getScore());
        }));
    }
}

Example 75 with ByteString

use of com.google.protobuf.ByteString in project java-docs-samples by GoogleCloudPlatform.

the class SynthesizeText method synthesizeSsml.

// [END tts_synthesize_text]
// [START tts_synthesize_ssml]
/**
 * Demonstrates using the Text to Speech client to synthesize text or ssml.
 *
 * Note: ssml must be well-formed according to: (https://www.w3.org/TR/speech-synthesis/
 * Example: <speak>Hello there.</speak>
 * @param ssml the ssml document to be synthesized. (e.g., "<?xml...")
 * @throws Exception on TextToSpeechClient Errors.
 */
public static void synthesizeSsml(String ssml) throws Exception {
    // Instantiates a client
    try (TextToSpeechClient textToSpeechClient = TextToSpeechClient.create()) {
        // Set the ssml input to be synthesized
        SynthesisInput input = SynthesisInput.newBuilder().setSsml(ssml).build();
        // Build the voice request
        VoiceSelectionParams voice = VoiceSelectionParams.newBuilder().setLanguageCode(// languageCode = "en_us"
        "en-US").setSsmlGender(// ssmlVoiceGender = SsmlVoiceGender.FEMALE
        SsmlVoiceGender.FEMALE).build();
        // Select the type of audio file you want returned
        AudioConfig audioConfig = AudioConfig.newBuilder().setAudioEncoding(// MP3 audio.
        AudioEncoding.MP3).build();
        // Perform the text-to-speech request
        SynthesizeSpeechResponse response = textToSpeechClient.synthesizeSpeech(input, voice, audioConfig);
        // Get the audio contents from the response
        ByteString audioContents = response.getAudioContent();
        // Write the response to the output file.
        try (OutputStream out = new FileOutputStream("output.mp3")) {
            out.write(audioContents.toByteArray());
            System.out.println("Audio content written to file \"output.mp3\"");
        }
    }
}