Media Server 25.4
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# Update or Remove Classes and Classifiers

To update or remove a class use the following actions:

- To add additional training images to a class, use the action AddClassImages. After adding images to a class you must retrain the classifier using the action BuildClassifier. To confirm that training was successful, use the action ListClassifiers (see List Classifiers and Classes).
- To remove training images from a class, use the action RemoveClassImages. After removing images from a class you must retrain the classifier using the action BuildClassifier. To confirm that training was successful, use the action ListClassifiers (see List Classifiers and Classes).
- To change the label of an image that you added to a class, use the action RelabelClassImage.
- To move an image from one class to another, for example if you add an image to the wrong class, use the action MoveClassImage.
- To add, remove, or update custom metadata for a class, use the actions AddClassMetadata, RemoveClassMetadata, and UpdateClassMetadata.
- To rename a class, use the action RenameClass.
- To remove a class from a classifier and discard all associated images and metadata, use the action RemoveClass.

To update or remove a classifier, use the following actions:

- To modify the training options for a classifier, use the actions SetClassifierTrainingOption and UnsetClassifierTrainingOption.
- To rename a classifier, use the action RenameClassifier.
- To delete a classifier and all of the information that it contains, use the action RemoveClassifier.

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Version 25.4 | Last updated October 2025

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Product: Knowledge Discovery Media Server 25.4

Topic Title: Update or Remove Classes and Classifiers