Export your model for use with mobile devices

Custom Vision Service allows classifiers to be exported to run offline. You can embed your exported classifier into an application and run it locally on a device for real-time classification.

Export options

Custom Vision Service supports the following exports:

  • Tensorflow for Android.
  • CoreML for iOS11.
  • ONNX for Windows ML.
  • Vision AI Developer Kit.
  • A Docker container for Windows, Linux, or ARM architecture. The container includes a Tensorflow model and service code to use the Custom Vision API.

Important

Custom Vision Service only exports compact domains. The models generated by compact domains are optimized for the constraints of real-time classification on mobile devices. Classifiers built with a compact domain may be slightly less accurate than a standard domain with the same amount of training data.

For information on improving your classifiers, see the Improving your classifier document.

Convert to a compact domain

Note

The steps in this section only apply if you have an existing model that is not set to compact domain.

To convert the domain of an existing model, take the following steps:

  1. On the Custom vision website, select the Home icon to view a list of your projects.

    Image of the home icon and projects list

  2. Select a project, and then select the Gear icon in the upper right of the page.

    Image of the gear icon

  3. In the Domains section, select one of the compact domains. Select Save Changes to save the changes.

    Note

    For Vision AI Dev Kit, the project must be created with the General (Compact) domain, and you must specify the Vision AI Dev Kit option under the Export Capabilities section.

    Image of domains selection

  4. From the top of the page, select Train to retrain using the new domain.

Export your model

To export the model after retraining, use the following steps:

  1. Go to the Performance tab and select Export.

    Image of the export icon

    Tip

    If the Export entry is not available, then the selected iteration does not use a compact domain. Use the Iterations section of this page to select an iteration that uses a compact domain, and then select Export.

  2. Select your desired export format, and then select Export to download the model.

Next steps

Integrate your exported model into an application by exploring one of the following articles or samples: