public Mat detect(Mat capturedImage) {
List<DetectedElement> detectedElements;
// loops over all the activated detectors
for (ElementsDetector detector : detectors.values()) {
// gets the elements detected by this detector
detectedElements = detector.detectElements(capturedImage);
for (DetectedElement detectedElement : detectedElements) {
// gets the image transformed by the detector
capturedImage = detectedElement.getTransformedImage();
// if has to recognize a face
if (isRecognizerActive
&& detectedElement != null
&& detectedElement.getDetectedImageElement() != null) {
assert (detectors.size() == 1
&& detectors.containsKey(Constants.DEFAULT_FACE_CLASSIFIER));
// recognizes the face
RecognizedFace recognizedFace =
recognizerManager.recognizeFace(detectedElement.getDetectedImageElement());
String name;
if (recognizedFace == Constants.UNKNOWN_FACE) {
name = recognizedFace.getName();
} else {
int percentage =
(int)
(100
* (Constants.FACE_RECOGNITION_THRESHOLD - recognizedFace.getConfidence())
/ Constants.FACE_RECOGNITION_THRESHOLD);
name = recognizedFace.getName() + " [" + percentage + "%]";
}
// writes the name of the recognized person (sort of embossed)
Point position = detectedElement.getPosition();
position.y -= 11;
position.x -= 1;
Imgproc.putText(
capturedImage,
name,
position,
Core.FONT_HERSHEY_TRIPLEX,
Constants.RECOGNIZED_NAME_FONT_SIZE,
Constants.BLACK);
position.y += 1;
position.x += 1;
Imgproc.putText(
capturedImage,
name,
position,
Core.FONT_HERSHEY_TRIPLEX,
Constants.RECOGNIZED_NAME_FONT_SIZE,
colors[2]);
}
}
}
return capturedImage;
}
public Mat onCameraFrame(CvCameraViewFrame inputFrame) {
mRgba = inputFrame.rgba();
mGray = inputFrame.gray();
if (mAbsoluteFaceSize == 0) {
int height = mGray.rows();
if (Math.round(height * mRelativeFaceSize) > 0) {
mAbsoluteFaceSize = Math.round(height * mRelativeFaceSize);
}
}
if (mZoomWindow == null || mZoomWindow2 == null) CreateAuxiliaryMats();
MatOfRect faces = new MatOfRect();
if (mJavaDetector != null)
mJavaDetector.detectMultiScale(
mGray,
faces,
1.1,
2,
2, // TODO: objdetect.CV_HAAR_SCALE_IMAGE
new Size(mAbsoluteFaceSize, mAbsoluteFaceSize),
new Size());
Rect[] facesArray = faces.toArray();
for (int i = 0; i < facesArray.length; i++) {
Imgproc.rectangle(mRgba, facesArray[i].tl(), facesArray[i].br(), FACE_RECT_COLOR, 3);
xCenter = (facesArray[i].x + facesArray[i].width + facesArray[i].x) / 2;
yCenter = (facesArray[i].y + facesArray[i].y + facesArray[i].height) / 2;
Point center = new Point(xCenter, yCenter);
Imgproc.circle(mRgba, center, 10, new Scalar(255, 0, 0, 255), 3);
Imgproc.putText(
mRgba,
"[" + center.x + "," + center.y + "]",
new Point(center.x + 20, center.y + 20),
Core.FONT_HERSHEY_SIMPLEX,
0.7,
new Scalar(255, 255, 255, 255));
Rect r = facesArray[i];
// compute the eye area
Rect eyearea =
new Rect(
r.x + r.width / 8,
(int) (r.y + (r.height / 4.5)),
r.width - 2 * r.width / 8,
(int) (r.height / 3.0));
// split it
Rect eyearea_right =
new Rect(
r.x + r.width / 16,
(int) (r.y + (r.height / 4.5)),
(r.width - 2 * r.width / 16) / 2,
(int) (r.height / 3.0));
Rect eyearea_left =
new Rect(
r.x + r.width / 16 + (r.width - 2 * r.width / 16) / 2,
(int) (r.y + (r.height / 4.5)),
(r.width - 2 * r.width / 16) / 2,
(int) (r.height / 3.0));
// draw the area - mGray is working grayscale mat, if you want to
// see area in rgb preview, change mGray to mRgba
Imgproc.rectangle(mRgba, eyearea_left.tl(), eyearea_left.br(), new Scalar(255, 0, 0, 255), 2);
Imgproc.rectangle(
mRgba, eyearea_right.tl(), eyearea_right.br(), new Scalar(255, 0, 0, 255), 2);
if (learn_frames < 5) {
teplateR = get_template(mJavaDetectorEye, eyearea_right, 24);
teplateL = get_template(mJavaDetectorEye, eyearea_left, 24);
learn_frames++;
} else {
// Learning finished, use the new templates for template
// matching
match_eye(eyearea_right, teplateR, method);
match_eye(eyearea_left, teplateL, method);
}
// cut eye areas and put them to zoom windows
Imgproc.resize(mRgba.submat(eyearea_left), mZoomWindow2, mZoomWindow2.size());
Imgproc.resize(mRgba.submat(eyearea_right), mZoomWindow, mZoomWindow.size());
}
return mRgba;
}
