C# 离线人脸识别库 ViewFaceCore
ViewFaceCore 是一个使用 C# 开发的超简单的离线人脸识别库。( 基于 SeetaFace6 )，多平台支持， 开源、免费、跨平台 (win/linux)。
支持的 .NET 版本, .NET Framework， .NET Standard, .NET / .NET Core
简单的人脸信息检测
以 Windows x64平台 为例，一个简单的人脸检测Demo，需要先使用 nuget 安装依赖。
ViewFaceCore： .NET 核心库。
ViewFaceCore.all_models ：人脸检测的模型支持(图省事可以直接安装这个)。
ViewFaceCore.runtime.win.x64 ：Windows-x64 的本机运行时，其它平台自行选择安装，可安装多个。
ViewFaceCore.Extension.SkiaSharp：SkiaSharp图像处理扩展，ImageSharp、SkiaSharp、System.Drawing三选一。
.net 7 创建winform项目
简单画个窗体
主要引用nuget包
以下为源码
using ViewFaceCore.Core;
using ViewFaceCore.Model;
using ViewFaceCore;
using SkiaSharp;
using System.Drawing;
using System.Diagnostics;
namespace WinFormsApp
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private string fileFilter = "*.*|*.bmp;*.jpg;*.jpeg;*.tiff;*.tiff;*.png";
private void btnSelect_Click(object sender, EventArgs e)
{
OpenFileDialog ofd = new OpenFileDialog();
ofd.Filter = fileFilter;
if (ofd.ShowDialog() != DialogResult.OK) return;
pictureBox1.ImageLocation = ofd.FileName;
label1.Text = pictureBox1.ImageLocation;
}
private void btnContrast_Click(object sender, EventArgs e)
{
OpenFileDialog ofd = new OpenFileDialog();
ofd.Filter = fileFilter;
if (ofd.ShowDialog() != DialogResult.OK) return;
pictureBox2.ImageLocation = ofd.FileName;
label2.Text = pictureBox2.ImageLocation;
}
//人脸检测
private void button2_Click(object sender, EventArgs e)
{
string msg = "";
if (pictureBox1.Image == null)
{
msg = "图片1不能为空";
richTextBox1.Text += msg + "\r\n";
return;
}
using FaceDetector faceDetector = new FaceDetector();
using var bitmap = SKBitmap.Decode(pictureBox1.ImageLocation);
FaceImage faceImage = bitmap.ToFaceImage();
FaceInfo[] infos = faceDetector.Detect(faceImage);
if (infos.Length == 0)
{
msg = "图片1未检测到人脸";
richTextBox1.Text += msg + "\r\n";
return;
}
//Console.WriteLine("识别到的人脸数量：" + infos.Length + " 个人脸信息：\n");
//Console.WriteLine("No.\t人脸置信度\t位置信息");
//for (int i = 0; i < infos.Length; i++)
//{
// Console.WriteLine(String.Format("{0}\t{1}\t{2}", i, infos[i].Score, infos[i].Location));
//}
Bitmap bitmap2 = new Bitmap(pictureBox1.Image);
//画方框，标记人脸
using (Graphics g = Graphics.FromImage(bitmap2))
{
g.DrawRectangles(new Pen(Color.Red, 2), infos.Select(p => new RectangleF(p.Location.X, p.Location.Y, p.Location.Width, p.Location.Height)).ToArray());
}
pictureBox1.Image = bitmap2;
}
//活体检测
private void button3_Click(object sender, EventArgs e)
{
string msg = "";
if (pictureBox1.Image == null)
{
msg = "图片1不能为空";
richTextBox1.Text += msg + "\r\n";
return;
}
using var bitmap = SKBitmap.Decode(pictureBox1.ImageLocation);
//FaceImage bitmap = new Bitmap(pictureBox1.Image).ToFaceImage();
FaceDetector faceDetector = new FaceDetector();
FaceLandmarker faceMark = new FaceLandmarker();
FaceAntiSpoofing faceAntiSpoofing = new FaceAntiSpoofing();
if (faceDetector.Detect(bitmap).Length == 0)
{
msg = "图片1未检测到人脸";
richTextBox1.Text += msg + "\r\n";
return;
}
var info = faceDetector.Detect(bitmap).First();
var markPoints = faceMark.Mark(bitmap, info);
Stopwatch sw = Stopwatch.StartNew();
sw.Start();
var result = faceAntiSpoofing.AntiSpoofing(bitmap, info, markPoints);
msg = "活体检测，结果：" + result.Status + "，清晰度:" + result.Clarity + "，真实度：" + result.Reality + "，耗时：" + sw.ElapsedMilliseconds + "ms";
richTextBox1.Text += msg + "\r\n";
Console.WriteLine(msg);
sw.Stop();
}
//人脸比对
private void button9_Click(object sender, EventArgs e)
{
String msg = "";
if (pictureBox1.Image == null)
{
msg = "图片1不能为空";
richTextBox1.Text += msg + "\r\n";
return;
}
if (pictureBox2.Image == null)
{
msg = "图片2不能为空";
richTextBox1.Text += msg + "\r\n";
return;
}
Stopwatch sw = Stopwatch.StartNew();
sw.Start();
using var faceImage0 = SKBitmap.Decode(pictureBox1.ImageLocation);
using var faceImage1 = SKBitmap.Decode(pictureBox2.ImageLocation);
//检测人脸信息
FaceDetector faceDetector = new FaceDetector();
FaceInfo[] infos0 = faceDetector.Detect(faceImage0);
FaceInfo[] infos1 = faceDetector.Detect(faceImage1);
if (infos0.Length == 0)
{
msg = "图片1未检测到人脸";
richTextBox1.Text += msg + "\r\n";
sw.Stop();
return;
}
if (infos1.Length == 0)
{
msg = "图片2未检测到人脸";
richTextBox1.Text += msg + "\r\n";
sw.Stop();
return;
}
//标记人脸位置
FaceLandmarker faceMark = new FaceLandmarker();
FaceMarkPoint[] points0 = faceMark.Mark(faceImage0, infos0[0]);
FaceMarkPoint[] points1 = faceMark.Mark(faceImage1, infos1[0]);
//提取特征值
FaceRecognizer faceRecognizer = new FaceRecognizer();
float[] data0 = faceRecognizer.Extract(faceImage0, points0);
float[] data1 = faceRecognizer.Extract(faceImage1, points1);
//对比特征值
bool isSelf = faceRecognizer.IsSelf(data0, data1);
//计算相似度
float similarity = faceRecognizer.Compare(data0, data1);
msg = "识别到的人脸是否为同一人：" + isSelf + "，相似度：" + similarity + "，对比耗时：" + sw.ElapsedMilliseconds + "ms";
richTextBox1.Text += msg + "\r\n";
Console.WriteLine(msg);
sw.Stop();
}
//口罩检测
private void button4_Click(object sender, EventArgs e)
{
string msg = "";
if (pictureBox1.Image == null)
{
msg = "图片1不能为空";
richTextBox1.Text += msg + "\r\n";
return;
}
FaceImage bitmap = SKBitmap.Decode(pictureBox1.ImageLocation).ToFaceImage();
FaceDetector faceDetector = new FaceDetector();
MaskDetector maskDetector = new MaskDetector();
if (faceDetector.Detect(bitmap).Length == 0)
{
msg = "图片1未检测到人脸";
richTextBox1.Text += msg + "\r\n";
return;
}
var info = faceDetector.Detect(bitmap).First();
PlotMaskResult plotMaskResult = maskDetector.PlotMask(bitmap, info);
if (plotMaskResult.Masked)
{
richTextBox1.Text += "口罩：是 \r\n";
}
else
{
richTextBox1.Text += "口罩：否 \r\n";
}
Console.WriteLine(msg);
}
//年龄预测
private void button5_Click(object sender, EventArgs e)
{
string msg = "";
if (pictureBox1.Image == null)
{
msg = "图片1不能为空";
richTextBox1.Text += msg + "\r\n";
return;
}
FaceImage bitmap = SKBitmap.Decode(pictureBox1.ImageLocation).ToFaceImage();
FaceDetector faceDetector = new FaceDetector();
if (faceDetector.Detect(bitmap).Length == 0)
{
msg = "图片1未检测到人脸";
richTextBox1.Text += msg + "\r\n";
return;
}
var info = faceDetector.Detect(bitmap).First();
AgePredictor agePredictor = new AgePredictor();
FaceLandmarker faceMark = new FaceLandmarker();
var markPoints = faceMark.Mark(bitmap, info);
int age = agePredictor.PredictAge(bitmap, markPoints);
richTextBox1.Text += "年龄：" + age + " \r\n";
Console.WriteLine(msg);
}
//性别预测
private void button6_Click(object sender, EventArgs e)
{
string msg = "";
if (pictureBox1.Image == null)
{
msg = "图片1不能为空";
richTextBox1.Text += msg + "\r\n";
return;
}
FaceImage bitmap = SKBitmap.Decode(pictureBox1.ImageLocation).ToFaceImage();
FaceDetector faceDetector = new FaceDetector();
if (faceDetector.Detect(bitmap).Length == 0)
{
msg = "图片1未检测到人脸";
richTextBox1.Text += msg + "\r\n";
return;
}
var info = faceDetector.Detect(bitmap).First();
GenderPredictor genderPredictor = new GenderPredictor();
FaceLandmarker faceMark = new FaceLandmarker();
var markPoints = faceMark.Mark(bitmap, info);
Gender gender = genderPredictor.PredictGender(bitmap, markPoints);
richTextBox1.Text += "性别：" + gender + " \r\n";
Console.WriteLine(msg);
}
//眼睛状态
private void button7_Click(object sender, EventArgs e)
{
string msg = "";
if (pictureBox1.Image == null)
{
msg = "图片1不能为空";
richTextBox1.Text += msg + "\r\n";
return;
}
FaceImage bitmap = SKBitmap.Decode(pictureBox1.ImageLocation).ToFaceImage();
FaceDetector faceDetector = new FaceDetector();
if (faceDetector.Detect(bitmap).Length == 0)
{
msg = "图片1未检测到人脸";
richTextBox1.Text += msg + "\r\n";
return;
}
var info = faceDetector.Detect(bitmap).First();
EyeStateDetector eyeStateDetector = new EyeStateDetector();
FaceLandmarker faceMark = new FaceLandmarker();
var markPoints = faceMark.Mark(bitmap, info);
EyeStateResult eyeStateResult = eyeStateDetector.Detect(bitmap, markPoints);
richTextBox1.Text += "眼睛状态：" + eyeStateResult + " \r\n";
Console.WriteLine(msg);
}
}
}
运行结果 ：
人脸检测：
活体检测：
人脸检测：
