using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using Emgu.CV;
using Emgu.CV.CvEnum;
using Emgu.CV.Structure;
using Emgu.Util;
using Emgu.CV.Cuda;
using FaceDetection;
namespace FaceDetection
{
public partial class Form1 : Form
{
//declaring global variables
private Capture capture = null; //takes images from camera as image frames
private bool captureInProgress; // checks if capture is executing
public Form1()
{
InitializeComponent();
CvInvoke.UseOpenCL = false;
try
{
capture = new Capture();
capture.ImageGrabbed += ProcessFrame;
}
catch (NullReferenceException excpt)
{
MessageBox.Show(excpt.Message);
}
}
private void ProcessFrame(object sender, EventArgs arg)
{
Mat frame = new Mat();
capture.Retrieve(frame, 0);
Mat image = frame;
long detectionTime;
List faces = new List();//sai o day
List eyes = new List();//sai o day
//The cuda cascade classifier doesn't seem to be able to load "haarcascade_frontalface_default.xml" file in this release
//disabling CUDA module for now
bool tryUseCuda = false;
bool tryUseOpenCL = true;
DetectFace.Detect(
image, "haarcascade_frontalface_default.xml", "haarcascade_eye.xml",
faces, eyes,
tryUseCuda,
tryUseOpenCL,
out detectionTime);
foreach (Rectangle face in faces)
{
CvInvoke.Rectangle(image, face, new Bgr(Color.Purple).MCvScalar, 3);
Bitmap c = frame.Bitmap;
Bitmap bmp = new Bitmap(face.Size.Width, face.Size.Height);
Graphics g = Graphics.FromImage(bmp);
g.DrawImage(c, 0, 0, face, GraphicsUnit.Pixel);
}
foreach (Rectangle eye in eyes)
CvInvoke.Rectangle(image, eye, new Bgr(Color.Green).MCvScalar, 2);
imageBox1 .Image = frame;
}
private void ReleaseData()
{
if (capture != null)
capture.Dispose();
}
private void button1_Click(object sender, EventArgs e)
{
if (capture != null) capture.FlipVertical = !capture.FlipVertical;
}
private void button2_Click_1(object sender, EventArgs e)
{
if (capture != null) capture.FlipHorizontal = !capture.FlipHorizontal;
}
private void btnStart_Click_1(object sender, EventArgs e)
{
if (capture != null)
{
if (captureInProgress)
{ //stop the capture
btnStart.Text = "Start Capture";
capture.Pause();
}
else
{
//start the capture
btnStart.Text = "Stop";
capture.Start();
}
captureInProgress = !captureInProgress;
}
}
}
}
