From e5d413994cb23564abc9c42bf0ce2cc762222a6c Mon Sep 17 00:00:00 2001
From: Navan Chauhan <navanchauhan@gmail.com>
Date: Sun, 26 May 2019 18:17:49 +0530
Subject: Created python folder

---
 pythonProgram/function-specific-programs/ear.py | 117 ++++++++++++++++++++++++
 1 file changed, 117 insertions(+)
 create mode 100644 pythonProgram/function-specific-programs/ear.py

(limited to 'pythonProgram/function-specific-programs/ear.py')

diff --git a/pythonProgram/function-specific-programs/ear.py b/pythonProgram/function-specific-programs/ear.py
new file mode 100644
index 0000000..a40e065
--- /dev/null
+++ b/pythonProgram/function-specific-programs/ear.py
@@ -0,0 +1,117 @@
+# Using Eye aspect ratio
+from scipy.spatial import distance as dist
+from imutils.video import VideoStream
+from imutils import face_utils
+from threading import Thread
+import numpy as np
+import playsound
+import argparse
+import imutils
+import time
+import dlib
+import cv2
+
+def sound_alarm():
+	print('You Sleep You Lose')
+
+def eye_aspect_ratio(eye):
+	# Computes the euclidean distances between the two sets of eyes
+	A = dist.euclidean(eye[1], eye[5])
+	B = dist.euclidean(eye[2], eye[4])
+ 
+	# compute the euclidean distance between the horizontal
+	# eye landmark (x, y)-coordinates
+	C = dist.euclidean(eye[0], eye[3])
+ 
+	# compute the eye aspect ratio
+	ear = (A + B) / (2.0 * C)
+	# return the eye aspect ratio
+	return ear
+
+shape_predictor = "../files/shape_predictor_68_face_landmarks.dat"
+
+
+EYE_AR_THRESH = 0.2 # If the EAR goes < this for 48 frames, it is counted as drowsiness
+EYE_AR_CONSEC_FRAMES = 48
+ 
+COUNTER = 0
+ALERT = False
+
+# initialize dlib's face detector (HOG-based) and then create
+# the facial landmark predictor
+print("Initialising Facial Landmark Predictor...")
+detector = dlib.get_frontal_face_detector()
+predictor = dlib.shape_predictor(shape_predictor)
+
+(lStart, lEnd) = face_utils.FACIAL_LANDMARKS_IDXS["left_eye"]
+(rStart, rEnd) = face_utils.FACIAL_LANDMARKS_IDXS["right_eye"]
+
+print("Starting Video Stream...")
+vs = VideoStream(src=0).start()
+time.sleep(1.0)
+ 
+while True:
+	frame = vs.read()
+	frame = imutils.resize(frame, width=450)
+	gray = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)
+ 
+	rects = detector(gray, 0)
+	for rect in rects:
+		shape = predictor(gray, rect)
+		shape = face_utils.shape_to_np(shape)
+ 
+		# extract the left and right eye coordinates, then use the
+		# coordinates to compute the eye aspect ratio for both eyes
+		leftEye = shape[lStart:lEnd]
+		rightEye = shape[rStart:rEnd]
+		leftEAR = eye_aspect_ratio(leftEye)
+		rightEAR = eye_aspect_ratio(rightEye)
+ 
+		# average the eye aspect ratio together for both eyes
+		ear = (leftEAR + rightEAR) / 2.0
+		# compute the convex hull for the left and right eye, then
+		# visualize each of the eyes
+		leftEyeHull = cv2.convexHull(leftEye)
+		rightEyeHull = cv2.convexHull(rightEye)
+		cv2.drawContours(frame, [leftEyeHull], -1, (0, 255, 0), 1)
+		cv2.drawContours(frame, [rightEyeHull], -1, (0, 255, 0), 1)
+		# check to see if the eye aspect ratio is below the blink
+		# threshold, and if so, increment the blink frame counter
+		if ear < EYE_AR_THRESH:
+			COUNTER += 1
+ 
+			# if the eyes were closed for a sufficient number of
+			# then sound the alarm
+			if COUNTER >= EYE_AR_CONSEC_FRAMES:
+				# if the alarm is not on, turn it on
+				if not ALARM_ON:
+					ALARM_ON = True
+ 
+				# draw an alarm on the frame
+				cv2.putText(frame, "Sleepiness Detected!", (10, 30),
+					cv2.FONT_HERSHEY_SIMPLEX, 0.7, (0, 0, 255), 2)
+				print("Sleepiness Detected!")
+				print("\a");print("\a");print("\a");print("\a");print("\a")
+				print("\a");print("\a");print("\a");print("\a");print("\a")
+				print("\a");print("\a");print("\a");print("\a");print("\a")
+
+
+ 
+		else:
+			COUNTER = 0
+			ALARM_ON = False
+
+		cv2.putText(frame, "Ratio: {:.2f}".format(ear), (300, 30),
+			cv2.FONT_HERSHEY_SIMPLEX, 0.7, (0, 0, 255), 2)
+ 
+	# show the frame
+	cv2.imshow("Frame", frame)
+	key = cv2.waitKey(1) & 0xFF
+ 
+	# if the `q` key was pressed, break from the loop
+	if key == ord("q"):
+		break
+ 
+# do a bit of cleanup
+cv2.destroyAllWindows()
+vs.stop()
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