EYE DETECTION IN IMAGE FILE USING OPENCV AND PYTHON

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Program :

# Eye Detection in Python
import cv2

# trained dataset for face (from github)
face_cascade = cv2.CascadeClassifier("face detection/haarcascade_frontalface_default.xml")
# trained dataset for eyes (from github)
eye_cascade = cv2.CascadeClassifier("face detection/haarcascade_eye_tree_eyeglasses.xml")

# read image
img = cv2.imread("images/elonmusk.jpg")

# convert colour image to grayscale image
gray_img = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)

# getting values of x-axis, y-axis, width, height for face
faces = face_cascade.detectMultiScale(gray_img)
""" print(faces) -> return values of x-axis, y-axis, width, height """

# creating rectangle around the face
for x, y, w, h in faces:
    """cv2.rectangle(img, (x, y), ((x + w), (y + h)), (0, 0, 255), 2)"""

    # roi means region of interest
    roi_gray = gray_img[y:y+h, x:x+w]
    roi_color = img[y:y+h, x:x+w]

    # getting values of x-axis, y-axis, width, height for eyes
    eyes = eye_cascade.detectMultiScale(roi_gray)
    """ print(eyes) -> return values of x-axis, y-axis, width, height """

    # creating rectangle around the eyes
    for ex, ey, ew, eh in eyes:
        cv2.rectangle(roi_color, (ex, ey), ((ex + ew), (ey + eh)), (255, 0, 0), 2)

# show image
cv2.imshow("Detecting...", img)
key = cv2.waitKey()
if key == 13:
    exit()

Output :


Also Refer: Eye Detection in video using OpenCV and python

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