/// <summary>
/// 更新已登记的人脸图片。
/// </summary>
/// <param name="f"></param>
/// <param name="fd"></param>
public void UpdateFacePicture(FaceInfo f, FaceData fd)
{
if (DataSource == DataSrcType.FileSystem)
{
//存储抓拍到的新图片，替换原始图片
string savepath;
int uid = f.userid;
switch (f.angleType)
{
case FaceData.FaceAngleType.Middle:
savepath = Path.GetDirectoryName(fd.text) + "\\"
+ _FaceDic.GetUserName(uid) + "0.jpg";
break;
case FaceData.FaceAngleType.Up:
savepath = Path.GetDirectoryName(fd.text) + "\\"
+ _FaceDic.GetUserName(uid) + "1.jpg";
break;
case FaceData.FaceAngleType.Down:
savepath = Path.GetDirectoryName(fd.text) + "\\"
+ _FaceDic.GetUserName(uid) + "2.jpg";
break;
case FaceData.FaceAngleType.Left:
savepath = Path.GetDirectoryName(fd.text) + "\\"
+ _FaceDic.GetUserName(uid) + "3.jpg";
break;
case FaceData.FaceAngleType.Right:
savepath = Path.GetDirectoryName(fd.text) + "\\"
+ _FaceDic.GetUserName(uid) + "4.jpg";
break;
default:
savepath = fd.text;
break;
}
Console.WriteLine("Save shot face: " + savepath);
f.text = savepath;
if (f.FaceShotBmp != null)
{
f.FaceShotBmp.Save(savepath);
}
}
else
{
//数据库更新
//TODO
}
}
private Rectangle drawFaceWires()
{
//DateTime t1 = DateTime.Now;
Rectangle rect = new Rectangle(Frame.Bitmap.Width / 2 - 50, Frame.Bitmap.Height / 2 - 50, 100, 100);
//foreach (FaceInfo f in Face.TracingFaceList)
for (int i = 0; i < Face.TracingFaceList.Count; i++)
{
FaceInfo f = Face.TracingFaceList[i];
if ((DateTime.Now - f.procTime).TotalMilliseconds > FaceRecgnize.MAX_FRAME_INTERVAL * 2)
{
continue;
}
//rect = f.getPos();
if (_LastFacePos.ContainsKey(f.faceid))
{
rect = _LastFacePos[f.faceid]; //获取上次位置
int dx = f.posLeft + f.posRight - rect.Left - rect.Right; //框中心位置x的偏移量
int dy = f.posTop + f.posBottom - rect.Top - rect.Bottom; //y
double d_ratio = Math.Sqrt(dx * dx + dy * dy) / 4 / rect.Width * 0.9; //本次画框坐标调整比率
int dw = f.FaceWidth() - rect.Width; //宽度偏移量
double w_ratio = (double)Math.Abs(dw) / rect.Width * 0.95; //宽度调整比率
rect.Height = rect.Width = rect.Width + (int)(dw * w_ratio); //新框宽高
if (rect.Width > 2 * f.FaceWidth() || rect.Width < f.FaceWidth() / 2) //安全矫正
{
rect.Height = rect.Width = f.FaceWidth();
}
rect.X = (int)((rect.Left + rect.Right + dx * d_ratio - rect.Width) / 2); //新框左上角x
rect.Y = (int)((rect.Top + rect.Bottom + dy * d_ratio - rect.Width) / 2); //新框左上角y
if (rect.X < 0 || rect.Y < 0 || rect.X > PictureWidth || rect.Y > PictureHight) //安全矫正
{
rect = f.getPos();
}
_LastFacePos[f.faceid] = rect;//记录本次位置
}
else
{
rect = _LastFacePos[f.faceid] = f.getPos();
}
//设置颜色
if (f.userid != 0)
{
Face.DrawPenColor = Color.Red;
}
else
{
Face.DrawPenColor = Color.Green;
}
//画框
Face.DrawFaceWire(Frame.Bitmap, rect);
//人脸框上写字
if (_FaceCmd == FaceCommand.ShotOneAndFind ||
_FaceCmd == FaceCommand.ShotAllAndFind)
{
string strinfo = (f.userid == 0 ? "???" : FaceDic.GetUserName(f.userid))
+ " " + (f.gender == FaceInfo.Gender.Mail ? "男" : "女")
+ " " + f.age + "岁";
Point strPos = new Point(rect.Left + rect.Width / 2, rect.Bottom + 3);
StringFormat strformat = new StringFormat();
strformat.Alignment = StringAlignment.Center;
Font font = new Font("微软雅黑", Math.Min(f.FaceWidth() / 20 + 7, 20));
SolidBrush sbrush = new SolidBrush(Face.DrawPenColor);
Graphics g = Graphics.FromImage(Frame.Bitmap);
g.DrawString(strinfo, font, sbrush, strPos, strformat);
g.Dispose();
}
}
//Console.WriteLine("drawFaceWires: runtime=" + (DateTime.Now - t1).TotalMilliseconds);
return(rect);
}
