example.py

"""
Demonstration of the GazeTracking library.
Check the README.md for complete documentation.
"""
from flask import Flask, Response, render_template
import cv2
import platform
from gaze_tracking import GazeTracking

gaze = GazeTracking()
webcam = cv2.VideoCapture(0)
app = Flask(__name__)

def gen_frames():  
    while True:
        # We get a new frame from the webcam
        _, frame = webcam.read()

        # We send this frame to GazeTracking to analyze it
        gaze.refresh(frame)

        frame = gaze.annotated_frame()
        text = ""

        if gaze.is_blinking():
            text = "Blinking"
        elif gaze.is_right():
            text = "Looking right"
        elif gaze.is_left():
            text = "Looking left"
        elif gaze.is_center():
            text = "Looking center"

        cv2.putText(frame, text, (90, 60), cv2.FONT_HERSHEY_DUPLEX, 1.6, (147, 58, 31), 2)

        left_pupil = gaze.pupil_left_coords()
        right_pupil = gaze.pupil_right_coords()
        cv2.putText(frame, "Left pupil:  " + str(left_pupil), (90, 130), cv2.FONT_HERSHEY_DUPLEX, 0.9, (147, 58, 31), 1)
        cv2.putText(frame, "Right pupil: " + str(right_pupil), (90, 165), cv2.FONT_HERSHEY_DUPLEX, 0.9, (147, 58, 31), 1)

        # cv2.imshow("Demo", frame)

        ret, buffer = cv2.imencode('.jpg', frame)
        frame = buffer.tobytes()
        yield (b'--frame\r\n'
                   b'Content-Type: image/jpeg\r\n\r\n' + frame + b'\r\n')  # concat frame one by one and show result

        if cv2.waitKey(1) == 27:
            break
   
# webcam.release()
# cv2.destroyAllWindows()

@app.route('/')
def index():
    return render_template('liveCam.html')

@app.route('/video_feed')
def video_feed():
    return Response(gen_frames(), mimetype='multipart/x-mixed-replace; boundary=frame')

if __name__ == "__main__":
    app.run('127.0.0.1', 8080, debug=True)