vws-python¶

Installation¶

$ pip install vws-python

This is tested on Python 3.13+. Get in touch with adamdangoor@gmail.com if you would like to use this with another language.

Usage¶

See the API Reference for full usage details.

"""Add a target to VWS and then query it."""

import os
import pathlib
import uuid

from vws import VWS, CloudRecoService

server_access_key = os.environ["VWS_SERVER_ACCESS_KEY"]
server_secret_key = os.environ["VWS_SERVER_SECRET_KEY"]
client_access_key = os.environ["VWS_CLIENT_ACCESS_KEY"]
client_secret_key = os.environ["VWS_CLIENT_SECRET_KEY"]

vws_client = VWS(
    server_access_key=server_access_key,
    server_secret_key=server_secret_key,
)

cloud_reco_client = CloudRecoService(
    client_access_key=client_access_key,
    client_secret_key=client_secret_key,
)

name = "my_image_name_" + uuid.uuid4().hex

image = pathlib.Path("high_quality_image.jpg")
with image.open(mode="rb") as my_image_file:
    target_id = vws_client.add_target(
        name=name,
        width=1,
        image=my_image_file,
        active_flag=True,
        application_metadata=None,
    )

vws_client.wait_for_target_processed(target_id=target_id)

with image.open(mode="rb") as my_image_file:
    matching_targets = cloud_reco_client.query(image=my_image_file)

assert matching_targets[0].target_id == target_id

Testing¶

To write unit tests for code which uses this library, without using your Vuforia quota, you can use the VWS Python Mock tool:

$ pip install vws-python-mock

"""Add a target to VWS and then query it."""

import pathlib

from mock_vws import MockVWS
from mock_vws.database import VuforiaDatabase

from vws import VWS, CloudRecoService

with MockVWS() as mock:
    database = VuforiaDatabase()
    mock.add_database(database=database)
    vws_client = VWS(
        server_access_key=database.server_access_key,
        server_secret_key=database.server_secret_key,
    )
    cloud_reco_client = CloudRecoService(
        client_access_key=database.client_access_key,
        client_secret_key=database.client_secret_key,
    )

    image = pathlib.Path("high_quality_image.jpg")
    with image.open(mode="rb") as my_image_file:
        target_id = vws_client.add_target(
            name="example_image_name",
            width=1,
            image=my_image_file,
            application_metadata=None,
            active_flag=True,
        )

        vws_client.wait_for_target_processed(target_id=target_id)
        matching_targets = cloud_reco_client.query(image=my_image_file)

    assert matching_targets[0].target_id == target_id

There are some differences between the mock and the real Vuforia. See https://vws-python.github.io/vws-python-mock/differences-to-vws for details.

Reference¶