how to Save only the eye image after the detection with opencv?

asked 2019-08-25 06:14:37 -0500

updated 2019-08-27 22:27:29 -0500

supra56 gravatar image

hello I need your help, i try to save only the eyes , nose , mouth after the detection with open cv.

import numpy as np
import cv2

face_cascade = cv2.CascadeClassifier('C:\\Users\MJ-INFO\Anaconda3\pkgs\libopencv-3.4.1-h875b8b8_3\Library\etc\haarcascades\haarcascade_frontalface_default.xml')
eye_cascade = cv2.CascadeClassifier('C:\\Users\MJ-INFO\Anaconda3\pkgs\libopencv-3.4.1-h875b8b8_3\Library\etc\haarcascades\haarcascade_eye.xml')

img = cv2.imread('image.jpg')
gray = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)

faces = face_cascade.detectMultiScale(gray, 1.2, 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:
            crop_img = roi_color[ey: ey + eh, ex: ex + ew]
            cv2.rectangle(roi_color, (ex, ey), (ex + ew, ey + eh), (0, 255, 0), 2)

cv2.imshow('img',img)
cv2.waitKey(0)
cv2.destroyAllWindows()

I try this code but it not work.

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