/// <summary> /// Checks if the person has been seen before /// </summary> /// <param name="fId"></param> /// <returns></returns> public static async Task <bool> CheckIfFaceWasSeenBefore(Guid fId, FaceAPI.FaceServiceClient faceClient, List <Guid> guids) { if (guids.Count == 0) { return(false); } bool retVal = false; SimilarFace[] val = await faceClient.FindSimilarAsync(fId, guids.ToArray()); foreach (SimilarFace similarFace in val) { if (similarFace.Confidence > 0.4) { retVal = true; } } return(retVal); }