/// <summary>
/// 人脸对齐，返回识别到的人脸数量。
/// </summary>
/// <param name="bitmap">图片</param>
/// <param name="faces">人脸对齐的结果</param>
/// <returns></returns>
public static int Alignment(Bitmap bitmap, ref AlignmentResult[] faces)
{
Bitmap bmp = BitmapTo24Rgb(bitmap); //将图像转换为24位rgb图像
bmp.SetResolution(96, 96); //设置dpi=96
byte[] imageByte = BitmapToByteBuffer(bmp, out int width, out int height, out int stride);
StringBuilder json = new StringBuilder(1500);
int faceCount = SDK.AlignmentByte(imageByte, width, height, stride, json);
if (faceCount > 0)
{
JsonSerializer serializer = new JsonSerializer();
faces = serializer.Deserialize <AlignmentResult[]>(new JsonTextReader(new StringReader(json.ToString())));
return(faceCount);
}
else
{
faces = new AlignmentResult[0];
return(faceCount);
}
}
/// <summary>
/// 检测图片中的人脸，返回识别到的人脸的数量。
/// </summary>
/// <param name="path">图片的路径</param>
/// <param name="faceInfo">识别到的第一张人脸</param>
/// <returns></returns>
public static int DetectFace(string path, ref FaceInfo faceInfo)
{
return(SDK.DetectFace(path, ref faceInfo));
}
/// <summary> /// 设置日志回调函数 /// </summary> /// <param name="logCallBack"></param> public static void SetDisplayLog(LogCallBack logCallBack) => SDK.SetDisplayLog(logCallBack);
/// <summary> /// 初始化人脸识别 /// </summary> /// <returns></returns> public static bool Init() => SDK.Init();
//公共方法 /// <summary> /// 设置人脸模型的目录 /// </summary> /// <param name="modelPath"></param> public static void SetModelDirectory(string modelPath) => SDK.SetModelDirectory(Encoding.Default.GetBytes(modelPath));
/// <summary> /// 计算人脸特征码相似度。 /// </summary> /// <param name="feat1">人脸特征码1</param> /// <param name="feat2">人脸特征码2</param> /// <returns></returns> public static double CalcSimilarity(float[] feat1, float[] feat2) => SDK.CalcSimilarity(feat1, feat2);
/// <summary>
/// 提取人脸特征码。
/// </summary>
/// <param name="path">图片路径</param>
/// <param name="alignmentResult">要提取特征码的人脸的对齐结果</param>
/// <param name="feat">特征码</param>
/// <returns></returns>
public static bool ExtractFeature(string path, ref AlignmentResult alignmentResult, float[] feat)
{
return(SDK.ExtractFeature(path, ref alignmentResult, feat));
}
