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| using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Runtime.InteropServices;
using Luxand;
namespace FaceDemo
{
public partial class Form1 : Form
{
private String cameraName;
// WinAPI procedure to release HBITMAP handles returned by FSDKCam.GrabFrame
[DllImport("gdi32.dll")]
private static extern bool DeleteObject(IntPtr hObject);
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
if (FSDK.FSDKE_OK != FSDK.ActivateLibrary("***************"))
{
MessageBox.Show("Please run the License Key Wizard (Start - Luxand - FaceSDK - License Key Wizard)", "Error activating FaceSDK", MessageBoxButtons.OK, MessageBoxIcon.Error);
Application.Exit();
}
FSDK.InitializeLibrary();
FSDKCam.InitializeCapturing();
}
private void button3_Click(object sender, EventArgs e)
{
OpenFileDialog dlg = new OpenFileDialog();
dlg.Filter = "JPEG (*.jpg)|*.jpg|Windows bitmap (*.bmp)|*.bmp|All files|*.*";
dlg.Multiselect = true;
if (dlg.ShowDialog() == DialogResult.OK)
{
try
{
//假设面部是垂直的（HandleArbitraryRotations = false）以加快面部检测速度
FSDK.SetFaceDetectionParameters(true, true, 384);
FSDK.SetFaceDetectionThreshold(3);
foreach (string fn in dlg.FileNames)
{
var image = new FSDK.CImage(fn);
var facePositions = image.DetectMultipleFaces();
foreach (var facePosition in facePositions)
{
var faceImage = image.CopyRect(
(int)(facePosition.xc - Math.Round(facePosition.w * 0.5)),
(int)(facePosition.yc - Math.Round(facePosition.w * 0.5)),
(int)(facePosition.xc + Math.Round(facePosition.w * 0.5)),
(int)(facePosition.yc + Math.Round(facePosition.w * 0.5)));
faceImage.Save($"{Guid.NewGuid().ToString()}.png");
}
int tracker = 0;
FSDK.CreateTracker(ref tracker);
int err = 0; // 设置实时人脸检测参数
FSDK.SetTrackerMultipleParameters(tracker, "RecognizeFaces=false;DetectExpression=true; DetectAge=true; DetectGender=true; HandleArbitraryRotations=false; DetermineFaceRotationAngle=false; InternalResizeWidth=100; FaceDetectionThreshold=5;", ref err);
long[] IDs;
long faceCount = 0;
FSDK.FeedFrame(tracker, 0, image.ImageHandle, ref faceCount, out IDs, sizeof(long) * 256); // maximum 256 faces detected
Array.Resize(ref IDs, (int)faceCount);
Image frameImage = image.ToCLRImage();
Graphics gr = Graphics.FromImage(frameImage);
for (int i = 0; i < IDs.Length; ++i)
{
FSDK.TFacePosition facePosition = new FSDK.TFacePosition();
FSDK.GetTrackerFacePosition(tracker, 0, IDs[i], ref facePosition);
int left = facePosition.xc - (int)(facePosition.w * 0.6);
int top = facePosition.yc - (int)(facePosition.w * 0.5);
int w = (int)(facePosition.w * 1.2);
gr.DrawRectangle(Pens.LightGreen, left, top, w, w);
String AttributeValues;
String AttributeValuesAge;
String AttributeValuesExpression;
if (0 == FSDK.GetTrackerFacialAttribute(tracker, 0, IDs[i], "Gender", out AttributeValues, 1024)
&& 0 == FSDK.GetTrackerFacialAttribute(tracker, 0, IDs[i], "Age", out AttributeValuesAge, 1024)
&& 0 == FSDK.GetTrackerFacialAttribute(tracker, 0, IDs[i], "Expression", out AttributeValuesExpression, 1024))
{
float ConfidenceAge = 0.0f;
float ConfidenceMale = 0.0f;
float ConfidenceSmile = 0.0f;
float ConfidenceFemale = 0.0f;
float ConfidenceEyesOpen = 0.0f;
FSDK.GetValueConfidence(AttributeValuesExpression, "Smile", ref ConfidenceSmile);
FSDK.GetValueConfidence(AttributeValuesExpression, "EyesOpen", ref ConfidenceEyesOpen);
FSDK.GetValueConfidence(AttributeValuesAge, "Age", ref ConfidenceAge);
FSDK.GetValueConfidence(AttributeValues, "Male", ref ConfidenceMale);
FSDK.GetValueConfidence(AttributeValues, "Female", ref ConfidenceFemale);
StringBuilder sb = new StringBuilder();
sb.Append($"Smile:{((int)(ConfidenceSmile * 100)).ToString()}%,");
sb.Append($"Eyes open:{((int)(ConfidenceEyesOpen * 100)).ToString()}%,");
sb.Append($"Age:{(int)ConfidenceAge},");
sb.Append($"{(ConfidenceMale > ConfidenceFemale ? "Male" : "Female")}:");
sb.Append($"{(ConfidenceMale > ConfidenceFemale ? (int)(ConfidenceMale * 100) : (int)(ConfidenceFemale * 100)).ToString()}%");
StringFormat format = new StringFormat();
format.Alignment = StringAlignment.Center;
gr.DrawString(sb.ToString(), new Font("Arial", 16), new SolidBrush(Color.DarkRed), facePosition.xc, top + w + 5, format);
this.textBox1.Text = this.textBox1.Text + "\n" + sb.ToString();
}
}
pictureBox1.Image = frameImage;
GC.Collect(); // collect the garbage
// make UI controls accessible
Application.DoEvents();
FSDK.FreeTracker(tracker);
FSDKCam.FinalizeCapturing();
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message.ToString(), "Exception");
}
}
}
}
}
|