public void work(OpenCvSharp.Mat frame)
{
// sending the frame in the capturer (_tracker)
// pbio::CVRawImage cvri_frame;
byte[] data = new byte[frame.Total() * frame.Type().Channels];
Marshal.Copy(frame.DataStart, data, 0, (int)data.Length);
RawImage ri_frame = new RawImage(frame.Width, frame.Height, RawImage.Format.FORMAT_BGR, data);
List <RawSample> samples = _tracker.capture(ri_frame);
// clone the frame for drawing on it
OpenCvSharp.Mat draw_image = frame.Clone();
// handle each face on the frame separately
for (int i = 0; i < samples.Count; ++i)
{
RawSample sample = samples[i];
// get a face rectangle
RawSample.Rectangle rectangle = sample.getRectangle();
// set a point to place information for this face
OpenCvSharp.Point2f text_point = new OpenCvSharp.Point2f(
rectangle.x + rectangle.width + 3,
rectangle.y + 10);
const float text_line_height = 22;
// draw facial points
// red color for all points
// green for left eye
// yellow for right eye
// (yes, there is a mess with left and right eyes in face_sdk api,
// but if we fix it now we will lose compatibility with previous versions)
if (_flag_points)
{
List <Point> points = sample.getLandmarks();
for (int j = -2; j < points.Count; ++j)
{
Point p =
j == -2 ?
sample.getLeftEye() :
j == -1 ?
sample.getRightEye() :
points[j];
OpenCvSharp.Scalar color =
j == -2 ?
new OpenCvSharp.Scalar(50, 255, 50) :
j == -1 ?
new OpenCvSharp.Scalar(50, 255, 255) :
new OpenCvSharp.Scalar(50, 50, 255);
OpenCvSharp.Cv2.Circle(
draw_image,
new OpenCvSharp.Point2f(p.x, p.y),
j < 0 ? 4 : 2,
color,
-1,
OpenCvSharp.LineTypes.AntiAlias);
}
}
// draw rectangle
if (_flag_positions)
{
OpenCvSharp.Cv2.Rectangle(
draw_image,
new OpenCvSharp.Rect(
rectangle.x,
rectangle.y,
rectangle.width,
rectangle.height),
new OpenCvSharp.Scalar(50, 50, 255),
2,
OpenCvSharp.LineTypes.AntiAlias);
}
// draw age and gender
if (_flag_age_gender)
{
AgeGenderEstimator.AgeGender age_gender = _age_geder_estimator.estimateAgeGender(sample);
string age_text = "age: ";
switch (age_gender.age)
{
case AgeGenderEstimator.Age.AGE_KID: age_text += "kid "; break;
case AgeGenderEstimator.Age.AGE_YOUNG: age_text += "young "; break;
case AgeGenderEstimator.Age.AGE_ADULT: age_text += "adult "; break;
case AgeGenderEstimator.Age.AGE_SENIOR: age_text += "senior "; break;
}
age_text += string.Format("years: {0:G3}", age_gender.age_years);
puttext(
draw_image,
age_text,
text_point);
text_point.Y += text_line_height;
puttext(
draw_image,
age_gender.gender == AgeGenderEstimator.Gender.GENDER_FEMALE ? "gender: female" :
age_gender.gender == AgeGenderEstimator.Gender.GENDER_MALE ? "gender: male" : "?",
text_point);
text_point.Y += text_line_height;
text_point.Y += text_line_height / 3;
}
// draw emotions
if (_flag_emotions)
{
List <EmotionsEstimator.EmotionConfidence> emotions =
_emotions_estimator.estimateEmotions(sample);
for (int j = 0; j < emotions.Count; ++j)
{
EmotionsEstimator.Emotion emotion = emotions[j].emotion;
float confidence = emotions[j].confidence;
OpenCvSharp.Cv2.Rectangle(
draw_image,
new OpenCvSharp.Rect(
(int)text_point.X,
(int)text_point.Y - (int)text_line_height / 2,
(int)(100 * confidence),
(int)text_line_height),
emotion == EmotionsEstimator.Emotion.EMOTION_NEUTRAL ? new OpenCvSharp.Scalar(255, 0, 0) :
emotion == EmotionsEstimator.Emotion.EMOTION_HAPPY ? new OpenCvSharp.Scalar(0, 255, 0) :
emotion == EmotionsEstimator.Emotion.EMOTION_ANGRY ? new OpenCvSharp.Scalar(0, 0, 255) :
emotion == EmotionsEstimator.Emotion.EMOTION_SURPRISE ? new OpenCvSharp.Scalar(0, 255, 255) :
new OpenCvSharp.Scalar(0, 0, 0),
-1);
puttext(
draw_image,
emotion == EmotionsEstimator.Emotion.EMOTION_NEUTRAL ? "neutral" :
emotion == EmotionsEstimator.Emotion.EMOTION_HAPPY ? "happy" :
emotion == EmotionsEstimator.Emotion.EMOTION_ANGRY ? "angry" :
emotion == EmotionsEstimator.Emotion.EMOTION_SURPRISE ? "surprise" : "?",
text_point + new OpenCvSharp.Point2f(100, 0));
text_point.Y += text_line_height;
text_point.Y += text_line_height / 3;
}
}
// draw angles text
if (_flag_angles)
{
string yaw, pitch, roll;
yaw = string.Format("yaw: {0}", (0.1f * (int)10 * sample.getAngles().yaw + 0.5f));
pitch = string.Format("pitch: {0}", (0.1f * (int)10 * sample.getAngles().pitch + 0.5f));
roll = string.Format("roll: {0}", (0.1f * (int)10 * sample.getAngles().roll + 0.5f));
puttext(draw_image, yaw, text_point);
text_point.Y += text_line_height;
puttext(draw_image, pitch, text_point);
text_point.Y += text_line_height;
puttext(draw_image, roll, text_point);
text_point.Y += text_line_height;
text_point.Y += text_line_height / 3;
}
// draw angles vectors
if (_flag_angles_vectors)
{
RawSample.Angles angles = sample.getAngles();
float cos_a = (float)Math.Cos(angles.yaw * OpenCvSharp.Cv2.PI / 180);
float sin_a = (float)Math.Sin(angles.yaw * OpenCvSharp.Cv2.PI / 180);
float cos_b = (float)Math.Cos(angles.pitch * OpenCvSharp.Cv2.PI / 180);
float sin_b = (float)Math.Sin(angles.pitch * OpenCvSharp.Cv2.PI / 180);
float cos_c = (float)Math.Cos(angles.roll * OpenCvSharp.Cv2.PI / 180);
float sin_c = (float)Math.Sin(angles.roll * OpenCvSharp.Cv2.PI / 180);
OpenCvSharp.Point3f[] xyz =
{
new OpenCvSharp.Point3f(cos_a * cos_c, -sin_c, -sin_a),
new OpenCvSharp.Point3f(sin_c, cos_b * cos_c, -sin_b),
new OpenCvSharp.Point3f(sin_a, sin_b, cos_a * cos_b)
};
OpenCvSharp.Point2f center = new OpenCvSharp.Point2f(
(sample.getLeftEye().x + sample.getRightEye().x) * 0.5f,
(sample.getLeftEye().y + sample.getRightEye().y) * 0.5f);
float length = (rectangle.width + rectangle.height) * 0.3f;
for (int c = 0; c < 3; ++c)
{
OpenCvSharp.Cv2.Line(
draw_image,
center,
center + new OpenCvSharp.Point2f(xyz[c].X, -xyz[c].Y) * length,
c == 0 ? new OpenCvSharp.Scalar(50, 255, 255) :
c == 1 ? new OpenCvSharp.Scalar(50, 255, 50) :
c == 2 ? new OpenCvSharp.Scalar(50, 50, 255) : new OpenCvSharp.Scalar(),
2,
OpenCvSharp.LineTypes.AntiAlias);
}
}
// draw quality text
if (_flag_quality)
{
QualityEstimator.Quality q =
_quality_estimator.estimateQuality(sample);
string lighting, noise, sharpness, flare;
lighting = "lighting: " + q.lighting.ToString();
puttext(draw_image, lighting, text_point);
text_point.Y += text_line_height;
noise = "noise: " + q.noise.ToString();
puttext(draw_image, noise, text_point);
text_point.Y += text_line_height;
sharpness = "sharpness: " + q.sharpness.ToString();
puttext(draw_image, sharpness, text_point);
text_point.Y += text_line_height;
flare = "flare: " + q.flare.ToString();
puttext(draw_image, flare, text_point);
text_point.Y += text_line_height;
text_point.Y += text_line_height / 3;
}
// draw liveness text
if (_flag_liveness)
{
Liveness2DEstimator.Liveness liveness_2d_result = _liveness_2d_estimator.estimateLiveness(sample);
puttext(
draw_image,
"liveness: " + (
liveness_2d_result == Liveness2DEstimator.Liveness.REAL ? "real" :
liveness_2d_result == Liveness2DEstimator.Liveness.FAKE ? "fake" :
liveness_2d_result == Liveness2DEstimator.Liveness.NOT_ENOUGH_DATA ? "not enough data" : "??"),
text_point);
text_point.Y += text_line_height;
text_point.Y += text_line_height / 3;
}
// draw face quality
if (_flag_face_quality)
{
float quality = _face_quality_estimator.estimateQuality(sample);
string ss = "face quality: " + quality.ToString();
puttext(draw_image, ss, text_point);
text_point.Y += text_line_height;
text_point.Y += text_line_height / 3;
}
// draw face cuts
for (int cut_i = 0; cut_i < 3; ++cut_i)
{
if ((cut_i == 0 && !_flag_cutting_base) ||
(cut_i == 1 && !_flag_cutting_full) ||
(cut_i == 2 && !_flag_cutting_token))
{
continue;
}
puttext(
draw_image,
cut_i == 0 ? "base cut:" :
cut_i == 1 ? "full cut:" :
cut_i == 2 ? "token cut:" : "?? cut",
text_point);
text_point.Y += text_line_height / 2;
MemoryStream obuf = new MemoryStream();
sample.cutFaceImage(
obuf,
RawSample.ImageFormat.IMAGE_FORMAT_BMP,
cut_i == 0 ? RawSample.FaceCutType.FACE_CUT_BASE :
cut_i == 1 ? RawSample.FaceCutType.FACE_CUT_FULL_FRONTAL :
cut_i == 2 ? RawSample.FaceCutType.FACE_CUT_TOKEN_FRONTAL :
(RawSample.FaceCutType) 999);
byte[] sbuf = obuf.ToArray();
// const OpenCvSharp.Mat_<uchar> cvbuf(1, sbuf.length(), (uchar*) sbuf.c_str());
OpenCvSharp.Mat img = OpenCvSharp.Cv2.ImDecode(sbuf, OpenCvSharp.ImreadModes.Unchanged);
OpenCvSharp.Cv2.Resize(img, img, OpenCvSharp.Size.Zero, 0.3, 0.3);
int img_rect_x = (int)Math.Max(0, -text_point.X);
int img_rect_y = (int)Math.Max(0, -text_point.Y);
int img_rect_width = (int)Math.Min(
img.Cols - img_rect_x,
draw_image.Cols - Math.Max(0, text_point.X));
int img_rect_height = (int)Math.Min(
img.Rows - img_rect_y,
draw_image.Rows - Math.Max(0, text_point.Y));
if (img_rect_width <= 0 || img_rect_height <= 0)
{
continue;
}
OpenCvSharp.Rect img_rect = new OpenCvSharp.Rect(img_rect_x, img_rect_y, img_rect_width, img_rect_height);
img[img_rect].CopyTo(
draw_image[new OpenCvSharp.Rect(
(int)Math.Max(0, text_point.X),
(int)Math.Max(0, text_point.Y),
img_rect.Width,
img_rect.Height)]);
text_point.Y += text_line_height / 2;
text_point.Y += img.Rows;
text_point.Y += text_line_height / 3;
}
}
// draw checkboxes
for (int i = 0; i < flags_count; ++i)
{
OpenCvSharp.Rect rect = flag_rect(i);
OpenCvSharp.Rect rect2 = new OpenCvSharp.Rect(rect.X + 5, rect.Y + 5, rect.Width - 10, rect.Height - 10);
OpenCvSharp.Cv2.Rectangle(draw_image, rect, OpenCvSharp.Scalar.All(255), -1);
OpenCvSharp.Cv2.Rectangle(draw_image, rect, OpenCvSharp.Scalar.All(0), 2, OpenCvSharp.LineTypes.AntiAlias);
if (get_flag(i))
{
OpenCvSharp.Cv2.Rectangle(draw_image, rect2, OpenCvSharp.Scalar.All(0), -1, OpenCvSharp.LineTypes.AntiAlias);
}
puttext(
draw_image,
flag_name(i),
new OpenCvSharp.Point2f(rect.X + rect.Width + 3, rect.Y + rect.Height - 3));
}
// show image with drawed information
OpenCvSharp.Cv2.ImShow("demo", draw_image);
// register callback on mouse events
OpenCvSharp.Cv2.SetMouseCallback("demo", (OpenCvSharp.CvMouseCallback)onMouse);
}