private void OnSmileAction(Mat frame, FrameRect face, FrameRect smile, FrameRect selectArea)
{
if (!smileState.isStart && isSelect)
{
smileState.Start();
}
}
//private bool isPeopleSpan = false;
private void Capture_ImageGrabbed(object sender, EventArgs e)
{
Mat frame = new Mat();
capture.Retrieve(frame, 0); //接收数据
var showFrame = frame.Clone();
FrameRect face, smile, selectArea;
if (showRateIndex == 0 || showRateIndex % showRate == 0)
{
face = getFace(frame);
selectArea = getSelectArea(frame, face);
smile = getSmile(frame, face);
if (face != null)
{
preFace = face;
}
preSmile = smile;
preSelectArea = selectArea;
}
else
{
face = preFace;
selectArea = preSelectArea;
smile = preSmile;
}
face = face == null ? preFace : face;
Graphics g = Graphics.FromImage(showFrame.Bitmap);
if (face != null)
{
DrawHat(preFace.rect, g);
g.DrawRectangle(new Pen(Color.Red, 3), face.rect);
}
if (smile != null)
{
showRateIndex++;
OnSmileAction(frame, face, smile, selectArea);
if (isSelect)
{
resFrame = frame;
resSelectArea = selectArea;
resSelectFace = face;
Image <Rgba, byte> rgbaImg = frame.ToImage <Rgba, byte>().Copy(selectArea.rect);
Graphics g_pic = Graphics.FromImage(rgbaImg.Bitmap);
//DrawHat(new Rectangle(face.rect.X - selectArea.rect.X, face.rect.Y - selectArea.rect.Y, face.rect.Width, face.rect.Height), g_pic);
imageBox_pic.Image = rgbaImg;
}
g.DrawRectangle(new Pen(Color.Blue, 3), smile.rect);
}
imageBox_cap.Image = showFrame; //显示图像
}
private FrameRect getFace(Mat frame)
{
FrameRect face = null;
using (UMat ugray = new UMat())
{
CvInvoke.CvtColor(frame, ugray, Emgu.CV.CvEnum.ColorConversion.Bgr2Gray); //灰度化图片
CvInvoke.EqualizeHist(ugray, ugray); //均衡化灰度图片
Rectangle[] facesDetected = faceClassifier.DetectMultiScale(ugray, 1.1, 10, new System.Drawing.Size(20, 20));
if (facesDetected != null && facesDetected.Length > 0)
{
face = new FrameRect(getMaxRectangle(facesDetected).rect);
}
}
return(face);
}
private FrameRect getSelectArea(Mat frame, FrameRect face)
{
if (face == null)
{
return(null);
}
int leftRightWidth = (imgWidth - face.rect.Width) / 2;
int topWidth = (imgHeigth - face.rect.Height) / 2;
int x, y = 0;
x = face.rect.X - leftRightWidth < 0 ? 0 : face.rect.X - leftRightWidth;
y = face.rect.Y - topWidth < 0 ? 0 : face.rect.Y - topWidth;
x = x + imgWidth > frame.Width ? frame.Width - imgWidth : x;
y = y + imgHeigth > frame.Height ? frame.Height - imgHeigth : y;
FrameRect rect = new FrameRect(new Rectangle(x, y, imgWidth, imgHeigth));
return(rect);
}
private FrameRect getSmile(Mat frame, FrameRect face)
{
if (face == null)
{
return(null);
}
Image <Gray, byte> tempImg = frame.ToImage <Gray, byte>();
Rectangle halfFace = new Rectangle(face.rect.X + face.rect.Width / 5, face.rect.Y + face.rect.Height * 3 / 5, face.rect.Width * 3 / 5, face.rect.Height * 2 / 5);
Image <Gray, byte> grayFace = tempImg.Copy(halfFace);
//imageBox2.Image = grayFace;
FrameRect smile = null;
Rectangle[] smileDetected = smileClassifier.DetectMultiScale(grayFace, 1.16, 35, new System.Drawing.Size(25, 25));
if (smileDetected != null && smileDetected.Length > 0)
{
smile = new FrameRect(getMaxRectangle(smileDetected).rect);
smile.rect.X += halfFace.X;
smile.rect.Y += halfFace.Y;
}
return(smile);
}
public bool SaveSelectAreaImg(string tel, Mat frame, FrameRect selectArea, string name)
{
var rgbFrameImg = frame.ToImage <Rgba, byte>();
string strencode = "";
byte[] utf8 = Encoding.UTF8.GetBytes(name);
name = Encoding.UTF8.GetString(utf8);
if (selectArea != null)
{
var selectImg = rgbFrameImg.Copy(selectArea.rect).Bitmap;
string path = imgPath + "/" + name;
//selectImg.Save(path);
selectImg.Save(path, System.Drawing.Imaging.ImageFormat.Jpeg);
if (openFtp != 0)
{
upload(path);
}
return(true);
}
return(false);
}
private void saveFace(Mat frame, FrameRect face)
{
if (face == null)
{
return;
}
if (!status)
{
return;
}
if (index >= 10)
{
status = false;
MessageBox.Show("完成");
return;
}
Image <Gray, byte> tempImg = frame.ToImage <Gray, byte>();
Image <Gray, byte> grayFace = tempImg.Copy(face.rect).Resize(200, 200, Inter.Linear);
grayFace.Save("./face_train/" + textBox1.Text + "_" + index + ".jpg");
index++;
}
