user voice site. It should not be a surprise as analysis of a person's mood is a killer feature for marketing or just plain fun applications. And we are happy to announce that it is available now for all our customers!
Currently for each face in a photo we return one of the following values (along with a confidence) for the mood attribute: neutral, surprised, happy, sad, disgusted, scared and angry. In case you wish to make some custom emotion analysis like "how happy does the person look in the photo?" we also return confidence for each one of the basic emotions separately.
You can check out the functionality in our demo right now. And as always your feedback is more than welcome.