Module: Google::Cloud::Vision::V1

Defined in:
lib/google/cloud/vision/v1.rb,
lib/google/cloud/vision/v1/credentials.rb,
lib/google/cloud/vision/v1/image_annotator_client.rb,
lib/google/cloud/vision/v1/doc/google/cloud/vision/v1/geometry.rb,
lib/google/cloud/vision/v1/doc/google/cloud/vision/v1/web_detection.rb,
lib/google/cloud/vision/v1/doc/google/cloud/vision/v1/image_annotator.rb,
lib/google/cloud/vision/v1/doc/google/cloud/vision/v1/text_annotation.rb

Overview

Ruby Client for Cloud Vision API (Alpha)

Cloud Vision API: Integrates Google Vision features, including image labeling, face, logo, and landmark detection, optical character recognition (OCR), and detection of explicit content, into applications.

Quick Start

In order to use this library, you first need to go through the following steps:

  1. Select or create a Cloud Platform project.
  2. Enable billing for your project.
  3. Enable the Cloud Vision API.
  4. Setup Authentication.

Preview

ImageAnnotatorClient

require "google/cloud/vision"

image_annotator_client = Google::Cloud::Vision.new(version: :v1)
gcs_image_uri = "gs://gapic-toolkit/President_Barack_Obama.jpg"
source = { gcs_image_uri: gcs_image_uri }
image = { source: source }
type = :FACE_DETECTION
features_element = { type: type }
features = [features_element]
requests_element = { image: image, features: features }
requests = [requests_element]
response = image_annotator_client.batch_annotate_images(requests)

Next Steps

Enabling Logging

To enable logging for this library, set the logger for the underlying gRPC library. The logger that you set may be a Ruby stdlib Logger as shown below, or a Google::Cloud::Logging::Logger that will write logs to Stackdriver Logging. See grpc/logconfig.rb and the gRPC spec_helper.rb for additional information.

Configuring a Ruby stdlib logger:

require "logger"

module MyLogger
  LOGGER = Logger.new $stderr, level: Logger::WARN
  def logger
    LOGGER
  end
end

# Define a gRPC module-level logger method before grpc/logconfig.rb loads.
module GRPC
  extend MyLogger
end

Defined Under Namespace

Modules: Likelihood Classes: AnnotateFileResponse, AnnotateImageRequest, AnnotateImageResponse, AsyncAnnotateFileRequest, AsyncAnnotateFileResponse, AsyncBatchAnnotateFilesRequest, AsyncBatchAnnotateFilesResponse, BatchAnnotateImagesRequest, BatchAnnotateImagesResponse, Block, BoundingPoly, ColorInfo, Credentials, CropHint, CropHintsAnnotation, CropHintsParams, DominantColorsAnnotation, EntityAnnotation, FaceAnnotation, Feature, GcsDestination, GcsSource, Image, ImageAnnotationContext, ImageAnnotatorClient, ImageContext, ImageProperties, ImageSource, InputConfig, LatLongRect, LocationInfo, NormalizedVertex, OperationMetadata, OutputConfig, Page, Paragraph, Position, Property, SafeSearchAnnotation, Symbol, TextAnnotation, Vertex, WebDetection, WebDetectionParams, Word

Class Method Summary collapse

Class Method Details

.new(credentials: nil, scopes: nil, client_config: nil, timeout: nil, metadata: nil, exception_transformer: nil, lib_name: nil, lib_version: nil) ⇒ Object

Service that performs Google Cloud Vision API detection tasks over client images, such as face, landmark, logo, label, and text detection. The ImageAnnotator service returns detected entities from the images.

Parameters:

  • credentials (Google::Auth::Credentials, String, Hash, GRPC::Core::Channel, GRPC::Core::ChannelCredentials, Proc) —

    Provides the means for authenticating requests made by the client. This parameter can be many types. A Google::Auth::Credentials uses a the properties of its represented keyfile for authenticating requests made by this client. A String will be treated as the path to the keyfile to be used for the construction of credentials for this client. A Hash will be treated as the contents of a keyfile to be used for the construction of credentials for this client. A GRPC::Core::Channel will be used to make calls through. A GRPC::Core::ChannelCredentials for the setting up the RPC client. The channel credentials should already be composed with a GRPC::Core::CallCredentials object. A Proc will be used as an updater_proc for the Grpc channel. The proc transforms the metadata for requests, generally, to give OAuth credentials.

  • scopes (Array<String>) —

    The OAuth scopes for this service. This parameter is ignored if an updater_proc is supplied.

  • client_config (Hash) —

    A Hash for call options for each method. See Google::Gax#construct_settings for the structure of this data. Falls back to the default config if not specified or the specified config is missing data points.

  • timeout (Numeric) —

    The default timeout, in seconds, for calls made through this client.

  • metadata (Hash) —

    Default metadata to be sent with each request. This can be overridden on a per call basis.

  • exception_transformer (Proc) —

    An optional proc that intercepts any exceptions raised during an API call to inject custom error handling.



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# File 'lib/google/cloud/vision/v1.rb', line 129

def self.new \
    credentials: nil,
    scopes: nil,
    client_config: nil,
    timeout: nil,
    metadata: nil,
    exception_transformer: nil,
    lib_name: nil,
    lib_version: nil
  kwargs = {
    credentials: credentials,
    scopes: scopes,
    client_config: client_config,
    timeout: timeout,
    metadata: metadata,
    exception_transformer: exception_transformer,
    lib_name: lib_name,
    lib_version: lib_version
  }.select { |_, v| v != nil }
  Google::Cloud::Vision::V1::ImageAnnotatorClient.new(**kwargs)
end