public static async Task <List <Mood> > DetectFaceExtract(Bitmap bitmap)
{
// change image to stream
var stream = ToStream(bitmap, ImageFormat.Png);
IList <DetectedFace> detectedFaces;
// Detect faces with all attributes from image
// we don't need all these attributes, only emotion is sufficient for current iteration
detectedFaces = await Instances.Authenticate().Face.DetectWithStreamAsync(stream, returnFaceAttributes: new List <FaceAttributeType> {
FaceAttributeType.Accessories, FaceAttributeType.Age,
FaceAttributeType.Blur, FaceAttributeType.Emotion,
FaceAttributeType.Exposure, FaceAttributeType.FacialHair,
FaceAttributeType.Gender, FaceAttributeType.Glasses,
FaceAttributeType.Hair, FaceAttributeType.HeadPose,
FaceAttributeType.Makeup, FaceAttributeType.Noise,
FaceAttributeType.Occlusion, FaceAttributeType.Smile
});
// debug
OutputData(detectedFaces);
// get the most likely emotion for each detected face
var emotions = new List <Mood>();
foreach (var face in detectedFaces)
{
var list = new List <double>()
{
face.FaceAttributes.Emotion.Anger,
face.FaceAttributes.Emotion.Fear,
face.FaceAttributes.Emotion.Happiness,
face.FaceAttributes.Emotion.Neutral,
face.FaceAttributes.Emotion.Sadness,
face.FaceAttributes.Emotion.Surprise
};
var mood = GetMood(list);
emotions.Add(mood);
}
stream.Dispose();
return(emotions);
}
