The correct answer is Face morphing.

Face morphing is not provided by the Cognitive Services Face API because the service is designed for face analysis and recognition rather than for creating or altering facial images. Morphing requires image generation or extensive pixel level editing which is outside the scope of the Face API and is usually handled by image editing tools or generative models.

Face detection is an available capability because the Face API can locate faces in images and return bounding boxes, landmarks, and basic attributes for detected faces.

Face verification is supported because the API can compare two detected faces and return a confidence score that indicates whether the faces belong to the same person.

Face grouping is offered because the service can cluster unknown faces into groups based on visual similarity without needing an existing person database.

Face identification is available because the API can match detected faces against a labeled person group or large person group to identify who the person is.

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