Added Eye Detection

Author: avats101

eye_detection/README.md

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+USER GUIDE
+Setup and activate virtual environment :
+
+For Unix based systems please execute the following command to create venv and install requirements.
+
+make init
+source .venv/bin/activate
+
+Pre-requisites
+
+1) Python Open-cv
+$ pip install opencv-python
+
+2) Python Numpy
+$ pip install numpy
+
+How to run the script?
+
+    $ python eye_detector.py
+
+Once done, Web Camera will start with the detecting Eyes

eye_detection/eye_detector.py

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+import numpy as np
+import cv2
+face_cascade = cv2.CascadeClassifier(
+    cv2.data.haarcascades + 'haarcascade_frontalface_default.xml')
+eye_cascade = cv2.CascadeClassifier(
+    cv2.data.haarcascades + 'haarcascade_eye.xml')
+cap = cv2.VideoCapture(0)
+while 1:
+    ret, img = cap.read()
+    gray = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
+    faces = face_cascade.detectMultiScale(gray, 1.3, 5)
+    for (x, y, w, h) in faces:
+        cv2.rectangle(img, (x, y), (x+w, y+h), (255, 0, 0), 2)
+        roi_gray = gray[y:y+h, x:x+w]
+        roi_color = img[y:y+h, x:x+w]
+        eyes = eye_cascade.detectMultiScale(roi_gray)
+        for (ex, ey, ew, eh) in eyes:
+            cv2.rectangle(roi_color, (ex, ey), (ex+ew, ey+eh), (0, 255, 0), 2)
+    cv2.imshow('Web Cam Input', img)
+    k = cv2.waitKey(30) & 0xff
+    if k == 27:
+        break
+cap.release()
+cv2.destroyAllWindows()

eye_detection/requirements.txt

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+opencv-python
+numpy