void _recognizeBW_DoWork(object sender, DoWorkEventArgs e) { if (e == null) { return; } var image = e.Argument as Bitmap; var imgName = Guid.NewGuid() + "kin.jpg"; var recResult = _faceRest.faces_recognize(null, _users, null, "", imgName, null, null, image); if (!recResult.status.Equals("success")) { e.Cancel = true; return; } var users = new Dictionary <string, float>(); if (recResult.photos.Count == 0 || recResult.photos[0].tags.Count == 0) { e.Cancel = true; return; } foreach (var uid in recResult.photos[0].tags[0].uids) { users.Add(uid.uid, uid.confidence); if (uid.confidence > 90) { _faceRest.tags_save(new List <string> { recResult.photos[0].tags[0].tid }, uid.uid, "", "kinectHome"); } } e.Result = users; }