Ejemplo n.º 1
0
        /// <summary>
        /// Function to update the list of Face IDs, based on the example images added
        /// </summary>
        private async void UpdateFaceGuidsAsync()
        {
            if (!_faceListExists)
            {
                return;
            }

            try
            {
                FaceList faceList = await _faceServiceClient.GetFaceListAsync(FaceListName.ToLower());

                if (faceList == null)
                {
                    return;
                }

                PersistedFace[] faces = faceList.PersistedFaces;

                foreach (PersistedFace face in faces)
                {
                    FaceIds.Add(face.PersistedFaceId);
                }
            }
            catch (FaceAPIException ex)
            {
                Debug.WriteLine($"Failed to get face list - {ex.ErrorMessage}");
            }
            catch (Exception ex)
            {
                Debug.WriteLine(ex.Message);
            }
        }
Ejemplo n.º 2
0
        /// <summary>
        /// Function to add example faces to a given face list. Will loop through a folder and add all image files in that folder
        /// </summary>
        /// <param name="obj"></param>
        private async void AddExampleFacesToList(object obj)
        {
            string personGroupDirectory = Path.Combine(Environment.CurrentDirectory, "PersonGroup");

            string[] images = GetImageFiles(personGroupDirectory);

            try
            {
                foreach (string image in images)
                {
                    using (Stream fileStream = File.OpenRead(image))
                    {
                        Face[] faces = await _faceServiceClient.DetectAsync(fileStream);

                        FaceRectangle faceRectangle = faces[0].FaceRectangle;

                        AddPersistedFaceResult addFacesResult =
                            await _faceServiceClient.AddFaceToFaceListAsync(
                                FaceListName.ToLower(),
                                fileStream, null, faceRectangle);

                        UpdateFaceGuidsAsync();
                    }
                }
            }
            catch (FaceAPIException ex)
            {
                Debug.WriteLine($"Failed to add faces to face list: {ex.ErrorMessage}");
            }
            catch (Exception ex)
            {
                Debug.WriteLine(ex.Message);
            }
        }
Ejemplo n.º 3
0
        /// <summary>
        /// Function to create new face list
        /// </summary>
        /// <param name="obj"></param>
        private async void CreateFaceListAsync(object obj)
        {
            try
            {
                if (!_faceListExists)
                {
                    await _faceServiceClient.CreateFaceListAsync(FaceListName.ToLower(), FaceListName, string.Empty);

                    await DoesFaceListExistAsync();
                }
            }
            catch (FaceAPIException ex)
            {
                Debug.WriteLine($"Failed to create face list - {ex.ErrorMessage}");
            }
            catch (Exception ex)
            {
                Debug.WriteLine(ex.Message);
            }
        }
Ejemplo n.º 4
0
        /// <summary>
        /// Function to find similar faces. Will first detect any faces in the given photo, and use this result for the similar faces search
        /// </summary>
        /// <param name="obj"></param>
        private async void FindSimilarFace(object obj)
        {
            if (!_faceListExists || FaceIds.Count == 0)
            {
                SimilarResult = "Face list does not exist";
            }

            Guid findFaceGuid = await BrowseAndDetectFaces();

            if (findFaceGuid.Equals(Guid.Empty))
            {
                return;
            }

            try
            {
                SimilarPersistedFace[] similarFaces = await _faceServiceClient.FindSimilarAsync(findFaceGuid, FaceListName.ToLower(), 3);

                if (similarFaces == null || similarFaces.Length == 0)
                {
                    SimilarResult = "No faces were similar";
                }

                StringBuilder result = new StringBuilder();
                result.Append("Similar faces:\n");

                if (similarFaces.Length == 0)
                {
                    result.Append("No similar faces found");
                }

                foreach (SimilarPersistedFace similarFace in similarFaces)
                {
                    result.AppendFormat("Face ID: {0}\n", similarFace.PersistedFaceId);
                    result.AppendFormat("Probability: {0}\n\n", similarFace.Confidence);
                }

                SimilarResult = result.ToString();
            }
            catch (Exception ex)
            {
                Debug.WriteLine(ex.Message);
            }
        }