Media Server 24.2

# 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.

Copyright 2024 Open Text
Version 24.2 | Last updated March 2024

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Product: IDOL Media Server 24.2

Topic Title: Add a Reference to a Database