google-cloud-vision

Google Cloud Vision (docs) allows developers to easily integrate vision detection features within applications, including image labeling, face and landmark detection, optical character recognition (OCR), and tagging of explicit content.

• google-cloud-vision API documentation
• google-cloud-vision on RubyGems
• Google Cloud Vision documentation

Quick Start

$ gem install google-cloud-vision

Authentication

This library uses Service Account credentials to connect to Google Cloud services. When running on Compute Engine the credentials will be discovered automatically. When running on other environments the Service Account credentials can be specified by providing the path to the JSON file, or the JSON itself, in environment variables.

Instructions and configuration options are covered in the Authentication Guide.

Example

require "google/cloud/vision"

vision = Google::Cloud::Vision.new

image = vision.image "path/to/landmark.jpg"

landmark = image.landmark
landmark.description #=> "Mount Rushmore"

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

Supported Ruby Versions

This library is supported on Ruby 2.0+.

However, Ruby 2.3 or later is strongly recommended, as earlier releases have reached or are nearing end-of-life. After June 1, 2018, Google will provide official support only for Ruby versions that are considered current and supported by Ruby Core (that is, Ruby versions that are either in normal maintenance or in security maintenance). See https://www.ruby-lang.org/en/downloads/branches/ for further details.

Versioning

This library follows Semantic Versioning.

It is currently in major version zero (0.y.z), which means that anything may change at any time and the public API should not be considered stable.

Contributing

Contributions to this library are always welcome and highly encouraged.

See the Contributing Guide for more information on how to get started.

Please note that this project is released with a Contributor Code of Conduct. By participating in this project you agree to abide by its terms. See Code of Conduct for more information.

License

This library is licensed under Apache 2.0. Full license text is available in LICENSE.

Support

Please report bugs at the project on Github. Don't hesitate to ask questions about the client or APIs on StackOverflow.