I have an Azure Face comparison application that compares two non-persistent faceIds.
The following question deals with non-persistent faceIds vs persistedFaceIds:
Microsoft Cognitive - Face API - Using persistedFaceId to Face to Face verification
It's really unclear to me how to compare two persistedFaceIds, despite staring at the API reference.
Can I persistently extract faceAttributes for two distinct images, then compare the two persistedFaceId?
And if so - how?
Face Lists was introduced to overcome this limitation.
With Face Lists, you can add multiple FaceIDs to a list which is persisted and use this Face List as a target for the Find-Similar API call. A face list holds a maximum of 1,000 faces. PersistedFaceId represents the added face. No image will be stored. Only the extracted face feature will be stored on server until FaceList - Delete Face or FaceList - Delete is called.
Note persistedFaceId is different from faceId generated by Face - Detect.
To get face information inside faceList use FaceList - Get (Retrieve a face list’s faceListId, name, userData, recognitionModel and faces in the face list.)
API Refer: https://learn.microsoft.com/en-us/rest/api/faceapi/face-list
Announcement: https://azure.microsoft.com/en-in/blog/cognitive-service-2015-12-21/