With Cumulus you can search for assets – especially image assets – which are visually similar to other assets. Similarity is detected by comparing specific hash values of different assets. Such a hash value is generated for an asset every time when the thumbnail is changed (or created), i.e. during cataloging and check-in, or caused by an update of the record.
For details on how to search for similar assets with the Cumulus Web Client, see the Web Client help, to be accessed from within the Web Client, or via help.canto.com.
Prerequisites
Some prerequisites must be met in order to make use of the similarity search feature.
Permissions
No special permissions are required for Cumulus users who want to use the similarity search feature.
Catalog-related Prerequisites
The similarity search feature requires the Similarity Hash field to be available in a catalog. Once this field is contained in the catalog, the respective hash value is computed automatically when assets are added to the catalog, or when the thumbnail is changed for whatever reason.
For details on how to add fields to a catalog, see Adding Fields.
NOTE: Similarity Hash values for asset that have been already in a catalog before this field was added, are not computed automatically! To get the Similarity Hash values for such legacy assets, you must first perform an Update Formula Fields operation at the Cumulus Desktop Client.