[DllImport(Libraries.MediaVisionFace, EntryPoint = "mv_face_tracking_model_load")]
internal static extern MediaVisionError Load(string fileName, out IntPtr handle);
}
+
+ /// <summary>
+ /// Interop for FaceRecognition APIs.
+ /// </summary>
+ internal static partial class FaceRecognition
+ {
+ [DllImport(Libraries.MediaVisionFaceRecognition, EntryPoint = "mv_face_recognition_create")]
+ internal static extern MediaVisionError Create(out IntPtr handle);
+
+ [DllImport(Libraries.MediaVisionFaceRecognition, EntryPoint = "mv_face_recognition_destroy")]
+ internal static extern MediaVisionError Destroy(IntPtr handle);
+
+ [DllImport(Libraries.MediaVisionFaceRecognition, EntryPoint = "mv_face_recognition_prepare")]
+ internal static extern MediaVisionError Prepare(IntPtr handle);
+
+ [DllImport(Libraries.MediaVisionFaceRecognition, EntryPoint = "mv_face_recognition_register")]
+ internal static extern MediaVisionError Register(IntPtr handle, IntPtr source, string label);
+
+ [DllImport(Libraries.MediaVisionFaceRecognition, EntryPoint = "mv_face_recognition_unregister")]
+ internal static extern MediaVisionError Unregister(IntPtr handle, string label);
+
+ [DllImport(Libraries.MediaVisionFaceRecognition, EntryPoint = "mv_face_recognition_inference")]
+ internal static extern MediaVisionError Inference(IntPtr handle, IntPtr source);
+
+ [DllImport(Libraries.MediaVisionFaceRecognition, EntryPoint = "mv_face_recognition_get_label")]
+ internal static extern MediaVisionError GetLabel(IntPtr handle, out string label);
+ }
}
}
--- /dev/null
+/*
+ * Copyright (c) 2022 Samsung Electronics Co., Ltd All Rights Reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the License);
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an AS IS BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+namespace Tizen.Multimedia.Vision
+{
+ /// <summary>
+ /// Represents the result of <see cref="DeepLearningFaceRecognizer"/> operations.
+ /// </summary>
+ /// <since_tizen> 10 </since_tizen>
+ public class DeepLearningFaceRecognitionResult
+ {
+ internal DeepLearningFaceRecognitionResult(string label)
+ {
+ Label = label;
+ }
+
+ /// <summary>
+ /// Gets the label of the recognized face.
+ /// </summary>
+ /// <since_tizen> 10 </since_tizen>
+ public string Label { get; }
+
+ /// <summary>
+ /// Returns a string that represents the current object.
+ /// </summary>
+ /// <returns>A string that represents the current object.</returns>
+ /// <since_tizen> 10 </since_tizen>
+ public override string ToString() => $"Label={Label}";
+ }
+}
--- /dev/null
+/*
+ * Copyright (c) 2022 Samsung Electronics Co., Ltd All Rights Reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the License);
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an AS IS BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+using System;
+using InteropFace = Interop.MediaVision.FaceRecognition;
+
+namespace Tizen.Multimedia.Vision
+{
+ /// <summary>
+ /// Provides the ability to recognize face based on previously registered face data.
+ /// </summary>
+ /// <since_tizen> 10 </since_tizen>
+ public class DeepLearningFaceRecognizer : IDisposable
+ {
+ private IntPtr _handle;
+ private bool _disposed;
+
+ /// <summary>Initializes a new instance of the <see cref="DeepLearningFaceRecognizer"/> class.</summary>
+ /// <remarks>
+ /// This class is different from <see cref="FaceRecognizer"/> in aspect of using internal machine learning algorithm.
+ /// </remarks>
+ /// <exception cref="NotSupportedException">The required features are not supported.</exception>
+ /// <feature>http://tizen.org/feature/vision.face_recognition</feature>
+ /// <since_tizen> 10 </since_tizen>
+ public DeepLearningFaceRecognizer()
+ {
+ ValidationUtil.ValidateFeatureSupported(VisionFeatures.FaceRecognition);
+
+ InteropFace.Create(out _handle).Validate("Failed to create face recognizer");
+
+ try
+ {
+ InteropFace.Prepare(_handle).Validate("Failed to prepare face recognizer");
+ }
+ catch (Exception e)
+ {
+ Log.Error(MediaVisionLog.Tag, e.ToString());
+ InteropFace.Destroy(_handle);
+ throw e;
+ }
+ }
+
+ /// <summary>
+ /// Finalizes an instance of the DeepLearningFaceRecognizer class.
+ /// </summary>
+ ~DeepLearningFaceRecognizer()
+ {
+ Dispose(false);
+ }
+
+ /// <summary>
+ /// Registers face data to internal database.
+ /// </summary>
+ /// <param name="source">The face data to register.</param>
+ /// <param name="label">The name of face data.</param>
+ /// <exception cref="ObjectDisposedException">The DeepLearningFaceRecognizer already has been disposed.</exception>
+ /// <exception cref="ArgumentNullException"><paramref name="source"/> or <paramref name="label"/> is null.</exception>
+ /// <exception cref="InvalidOperationException">In case of any invalid operations.</exception>
+ /// <since_tizen> 10 </since_tizen>
+ public void RegisterFace(MediaVisionSource source, string label)
+ {
+ ValidateNotDisposed();
+
+ if (source == null)
+ {
+ throw new ArgumentNullException(nameof(source));
+ }
+ if (label == null)
+ {
+ throw new ArgumentNullException(nameof(label));
+ }
+
+ InteropFace.Register(_handle, source.Handle, label).Validate("Failed to register face data");
+ }
+
+ /// <summary>
+ /// Unregisters face data from internal database.
+ /// </summary>
+ /// <param name="label">The name of face data.</param>
+ /// <exception cref="ObjectDisposedException">The DeepLearningFaceRecognizer already has been disposed.</exception>
+ /// <exception cref="ArgumentNullException"><paramref name="label"/> is null.</exception>
+ /// <exception cref="InvalidOperationException">In case of any invalid operations.</exception>
+ /// <since_tizen> 10 </since_tizen>
+ public void UnregisterFace(string label)
+ {
+ ValidateNotDisposed();
+
+ if (label == null)
+ {
+ throw new ArgumentNullException(nameof(label));
+ }
+
+ InteropFace.Unregister(_handle, label).Validate("Failed to register face data");
+ }
+
+ /// <summary>
+ /// Recognizes a face in by finding the closest match among the registered faces and returns the label of the found face.
+ /// </summary>
+ /// <param name="source">The face data to recognize.</param>
+ /// <returns>A label of recognized face.</returns>
+ /// <exception cref="ObjectDisposedException">The DeepLearningFaceRecognizer already has been disposed.</exception>
+ /// <exception cref="ArgumentNullException"><paramref name="source"/> is null.</exception>
+ /// <exception cref="InvalidOperationException">In case of any invalid operations.</exception>
+ /// <since_tizen> 10 </since_tizen>
+ public DeepLearningFaceRecognitionResult Recognize(MediaVisionSource source)
+ {
+ ValidateNotDisposed();
+
+ if (source == null)
+ {
+ throw new ArgumentNullException(nameof(source));
+ }
+
+ InteropFace.Inference(_handle, source.Handle).Validate("Failed to recognize face");
+
+ InteropFace.GetLabel(_handle, out string label).Validate("Failed to get label");
+
+ return new DeepLearningFaceRecognitionResult(label);
+ }
+
+ /// <summary>
+ /// Releases the unmanaged resources used by the DeepLearningFaceRecognizer.
+ /// </summary>
+ /// <param name="disposing">true to release both managed and unmanaged resources; false to release only unmanaged resources.</param>
+ /// <since_tizen> 10 </since_tizen>
+ protected virtual void Dispose(bool disposing)
+ {
+ if (!_disposed)
+ {
+ if (disposing)
+ {
+ // to be used if there are any other disposable objects
+ }
+
+ if (_handle != IntPtr.Zero)
+ {
+ InteropFace.Destroy(_handle);
+ _handle = IntPtr.Zero;
+ }
+
+ _disposed = true;
+ }
+ }
+
+ /// <summary>
+ /// Releases all resources used by the DeepLearningFaceRecognizer.
+ /// </summary>
+ /// <since_tizen> 10 </since_tizen>
+ public void Dispose()
+ {
+ Dispose(true);
+ GC.SuppressFinalize(this);
+ }
+
+ internal void ValidateNotDisposed()
+ {
+ if (_disposed)
+ {
+ Log.Error(MediaVisionLog.Tag, "DeepLearningFaceRecognizer handle is disposed.");
+ throw new ObjectDisposedException(nameof(DeepLearningFaceRecognizer));
+ }
+ }
+ }
+}
\ No newline at end of file
projects / platform / core / csapi / tizenfx.git / commitdiff