source: gs3-extensions/structured-image/trunk/README.txt@ 37140

#---
# Setup
#---

Assuming you have been through setting up:

    cd ext-cli/
    ./get-selfcontained-python3.sh

Then to setup this extension then all you need to do is:

    pip install --upgrade google-cloud-vision

To enable the Google Vision API, set up a key etc, see:

    https://cloud.google.com/vision/docs/setup


When you create a key, your browsesr downloads a JSON version of the key.


Also check:

   packages/README.txt

and
   src/README.txt
  
and follow the instructions.

    
#---
# Using the Extension
#---

The extension provides the GoogleVisionImagePlugin, for use in collections.

Example use of the plugin:

    <plugin name="GoogleVisionImagePlugin">
      <option name="-enable_document_ocr"/>
      <option name="-enable_image_labelling"/>
    </plugin>

The plugin currently has a hard-wired filename for the Google
service key.  This need's to be in the collection's 'etc'
directory as follows:

    etc/my-google-service-account-key.json


For the 'atea-storage' Google Cloud Project, for example, a redacted version of
the JSON key file looks like:

{
  "type": "service_account",
  "project_id": "atea-storage",
  "private_key_id": "7bc843de4257da515193eaa5b60468fcab5b3948",
  "private_key": "-----BEGIN PRIVATE KEY-----\n???????.........??????=\n-----END PRIVATE KEY-----\n",
  "client_email": "service-account@atea-storage.iam.gserviceaccount.com",
  "client_id": "123???...????",
  "auth_uri": "https://accounts.google.com/o/oauth2/auth",
  "token_uri": "https://oauth2.googleapis.com/token",
  "auth_provider_x509_cert_url": "https://www.googleapis.com/oauth2/v1/certs",
  "client_x509_cert_url": "https://www.googleapis.com/robot/v1/metadata/x509/service-account%40atea-storage.iam.gserviceaccount.com"
}