/// <summary>
/// 获取多个人脸检测结果中面积最大的人脸
/// </summary>
/// <param name="multiFaceInfo">人脸检测结果</param>
/// <returns>面积最大的人脸信息</returns>
public static ASF_SingleFaceInfo GetMaxFace(AFIC_FSDK_FACERES multiFaceInfo)
{
ASF_SingleFaceInfo singleFaceInfo = new ASF_SingleFaceInfo();
singleFaceInfo.faceRect = new RECT();
singleFaceInfo.faceOrient = 1;
int maxArea = 0;
int index = -1;
for (int i = 0; i < multiFaceInfo.nFace; i++)
{
RECT rect = multiFaceInfo.rcFace;
int area = (rect.right - rect.left) * (rect.bottom - rect.top);
if (maxArea <= area)
{
maxArea = area;
index = i;
}
}
if (index != -1)
{
singleFaceInfo.faceRect = multiFaceInfo.rcFace;
}
return(singleFaceInfo);
}
/// <summary>
///图像显示到窗体上，得到每一帧图像，并进行处理
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void videoSourcePlayer_Paint(object sender, PaintEventArgs e)
{
if (videoSource.IsRunning)
{
Bitmap bitmap = videoSource.GetCurrentVideoFrame();
if (bitmap == null)
{
return;
}
Graphics g = e.Graphics;
float offsetX = videoSource.Width * 1f / bitmap.Width;
float offsetY = videoSource.Height * 1f / bitmap.Height;
AFIC_FSDK_FACERES faceInfo = new AFIC_FSDK_FACERES();
int result = IDCardUtil.FaceDataFeatureExtraction(pEngine, true, bitmap, ref faceInfo);
if (result == 0 && faceInfo.nFace > 0)
{
string message = "";
if (isShow && isRead)
{
float pSimilarScore = 0;
int pResult = 0;
float threshold = 0.82f;
float.TryParse(scoreText.Text, out threshold);
result = IDCardUtil.FaceIdCardCompare(ref pSimilarScore, ref pResult, pEngine, threshold);
if (result == 0)
{
if (threshold > pSimilarScore)
{
msgLabel.ForeColor = Color.Red;
msgLabel.Text = "人证核验失败";
}
else
{
msgLabel.ForeColor = Color.Green;
msgLabel.Text = "人证核验成功";
}
}
message = "相似度:" + pSimilarScore;
}
else
{
msgLabel.ForeColor = Color.Red;
msgLabel.Text = "请放置身份证";
}
ASF_SingleFaceInfo maxFace = IDCardUtil.GetMaxFace(faceInfo);
RECT rect = maxFace.faceRect;
float x = rect.left * offsetX;
float width = rect.right * offsetX - x;
float y = rect.top * offsetY;
float height = rect.bottom * offsetY - y;
using (Pen pen = new Pen(Color.Red))
{
g.DrawRectangle(pen, x, y, width, height);
}
}
}
}
private void CompareTest(string sfzImg, string paiZhaoImg)
{
Bitmap Bitmap = new Bitmap(paiZhaoImg);
int res = IDCardUtil.IdCardDataFeatureExtraction(pEngine, Image.FromFile(sfzImg));
if (res == 0)
{
AFIC_FSDK_FACERES faceInfo = new AFIC_FSDK_FACERES();
int result2 = IDCardUtil.FaceDataFeatureExtraction(pEngine, false, Bitmap, ref faceInfo);
if (result2 == 0 && faceInfo.nFace > 0)
{
float pSimilarScore = 0;
int pResult = 0;
float threshold = 0.82f;
int result3 = IDCardUtil.FaceIdCardCompare(ref pSimilarScore, ref pResult, pEngine, threshold);
if (result3 == 0)
{
Console.WriteLine("相似度:" + pSimilarScore);
if (pSimilarScore >= GetFaceThreshold())
{
timer.Close();
MessageBox.Show("活体，相似度" + pSimilarScore + ",人脸验证通过！");
App.Current.Dispatcher.Invoke((Action)(() =>
{
this.Close();
CameraHelper.CloseDevice();
Console.WriteLine("关闭摄像头");
int retCode = ASIDCardFunctions.ArcSoft_FIC_UninitialEngine(pEngine);
Console.WriteLine("UninitEngine Result:" + retCode);
Window_Closed();
}));
}
else
{
MessageBox.Show("相似度" + pSimilarScore + ",人脸验证未通过！");
timer.Start();
}
}
else
{
MessageBox.Show("识别失败，请重试！");
timer.Start();
}
}
else
{
MessageBox.Show("未检测到人脸，请重试！");
timer.Start();
}
}
else
{
MessageBox.Show("1" + Convert.ToString(res));
}
}
private void videoSourcePlayer1_Paint(object sender, PaintEventArgs e)
{
if (closeForm)
{
this.Close();
return;
}
if (videoSourcePlayer1.IsRunning)
{
Bitmap bitmap = videoSourcePlayer1.GetCurrentVideoFrame();
if (bitmap == null)
{
return;
}
Graphics g = e.Graphics;
float offsetX = videoSourcePlayer1.Width * 1f / bitmap.Width;
float offsetY = videoSourcePlayer1.Height * 1f / bitmap.Height;
AFIC_FSDK_FACERES faceInfo = new AFIC_FSDK_FACERES();
int result = IDCardUtil.FaceDataFeatureExtraction(pEngine, true, bitmap, ref faceInfo);
if (result == 0 && faceInfo.nFace > 0)
{
float pSimilarScore = 0;
int pResult = 0;
float threshold = 0.82f;
result = IDCardUtil.FaceIdCardCompare(ref pSimilarScore, ref pResult, pEngine, threshold);
if (result == 0)
{
if (threshold <= pSimilarScore)
{
verifyCounts++;
this.textBox1.Text = "成功核对; " + verifyCounts.ToString();
//this.textBox1.Text = deviceVideo.VideoResolution.FrameSize.Width.ToString() + " " + deviceVideo.VideoResolution.FrameSize.Height.ToString();
//定时关闭启动
if (!timer.Enabled && verifyCounts > 8)
{
formReturnValue = FACEMATCHED;
timer.Enabled = true;
}
}
}
ASF_SingleFaceInfo maxFace = IDCardUtil.GetMaxFace(faceInfo);
RECT rect = maxFace.faceRect;
float x = rect.left * offsetX;
float width = rect.right * offsetX - x;
float y = rect.top * offsetY;
float height = rect.bottom * offsetY - y;
using (Pen pen = new Pen(Color.Red))
{
g.DrawRectangle(pen, x, y, width, height);
}
}
}
}
static void start(Img imgInfo)
{
var image = GetImageFromBase64(imgInfo.srcImg.Replace("data:image/png;base64,", "").Replace("data:image/jgp;base64,", "")
.Replace("data:image/jpg;base64,", "").Replace("data:image/jpeg;base64,", ""));
// Image image = Image.FromFile("C:/xxx/1.jpg");
int result2 = IDCardUtil.IdCardDataFeatureExtraction(pEngine, image);
if (result2 != 0)
{
Console.WriteLine("idCard失败");
allSockets.ToList().ForEach(s => s.Send("idCard失败"));
}
var bitmap = GetImageFromBase64(imgInfo.faceImg.Replace("data:image/png;base64,", "").Replace("data:image/jgp;base64,", "")
.Replace("data:image/jpg;base64,", "").Replace("data:image/jpeg;base64,", ""));
// Bitmap bitmap = new Bitmap(@"C:\xxx\xxx.bmp");
if (bitmap == null)
{
return;
}
float offsetX = image.Width * 1f / bitmap.Width;
float offsetY = image.Height * 1f / bitmap.Height;
AFIC_FSDK_FACERES faceInfo = new AFIC_FSDK_FACERES();
int result = IDCardUtil.FaceDataFeatureExtraction(pEngine, false, bitmap, ref faceInfo);
if (result == 0 && faceInfo.nFace > 0)
{
float pSimilarScore = 0;
int pResult = 0;
float threshold = 0.82f;
result = IDCardUtil.FaceIdCardCompare(ref pSimilarScore, ref pResult, pEngine, threshold);
if (result == 0)
{
Console.WriteLine(pSimilarScore);
allSockets.ToList().ForEach(s => s.Send("相似度:" + pSimilarScore.ToString()));
if (threshold > pSimilarScore)
{
Console.WriteLine("失败");
}
else
{
Console.WriteLine("成功");
}
}
}
else
{
allSockets.ToList().ForEach(s => s.Send("不存在人脸"));
Console.WriteLine("不存在人脸");
}
}
/// <summary>
/// 人脸特征提取
/// </summary>
/// <param name="hFICEngine">FIC 引擎Handle</param>
/// <param name="isVideo">人脸数据类型 1-视频 0-静态图片</param>
/// <param name="bitmap">人脸图像原始数据</param>
/// <returns>人脸检测结果</returns>
public static int FaceDataFeatureExtraction(IntPtr hFICEngine, bool isVideo, Bitmap bitmap, ref AFIC_FSDK_FACERES faceRes)
{
lock (locks)
{
int result = -1;
if (bitmap != null)
{
ASVLOFFSCREEN offInput = ImageUtil.ReadBmp(bitmap);
IntPtr offInputPtr = MemoryUtil.Malloc(MemoryUtil.SizeOf <ASVLOFFSCREEN>());
MemoryUtil.StructureToPtr(offInput, offInputPtr);
IntPtr faceResPtr = MemoryUtil.Malloc(MemoryUtil.SizeOf <AFIC_FSDK_FACERES>());
result = ASIDCardFunctions.ArcSoft_FIC_FaceDataFeatureExtraction(hFICEngine, isVideo, offInputPtr, faceResPtr);
faceRes = MemoryUtil.PtrToStructure <AFIC_FSDK_FACERES>(faceResPtr);
MemoryUtil.Free(offInput.ppu8Plane[0]);
MemoryUtil.Free(offInputPtr);
MemoryUtil.Free(faceResPtr);
}
return(result);
}
}
