Add a Reference to a Database

To add a new reference for image comparison, follow these steps.

To add a reference to a database

  • Add the reference using the action TrainImageComparisonReference, with the following parameters:

    database The name of the database to add the reference to. The database must already exist.
    identifier (Optional) A unique identifier for the reference (maximum 254 bytes). If you do not set this parameter, Media Server generates an identifier automatically.
    imagedata (Set this or imagepath, but not both). The training image to add. The file must be uploaded as multipart/form-data. For more information about sending data to Media Server, see Send Data by Using a POST Method.
    imagepath (Set this or imagedata, but not both). The path of the training image to add. The path must be absolute or relative to the Media Server executable file.
    imagelabels (Optional) A label to identify the image that you are adding (maximum 254 bytes). If you do not set this parameter, Media Server generates a label automatically.
    metadata (Optional) A comma-separated list of metadata key-value pairs to add to the reference. Separate keys from values using a colon (:). To include a comma or colon in a key name or value, you must enclose the key name or value in quotation marks (") and escape any quotation marks that occur within the string with a backslash (\).

    For example:

    curl http://localhost:14000 -F action=TrainImageComparisonReference
                                -F database=ReferenceImages
                                -F imagedata=@camera39.png
                                -F metadata=Location:Cambridge

    Alternatively, the following example provides the path of the training image rather than sending the image data:

    curl http://localhost:14000 -F action=TrainImageComparisonReference
                                -F database=ReferenceImages
                                -F imagepath=./training/comparison/camera39.png
                                -F "metadata=Location:Cambridge"

    Media Server adds the reference to the database and returns the identifier.