face-detction code added here

Author: amide-init

opencvclass/face-detection.py

@@ -0,0 +1,33 @@
+import numpy as np
+import cv2
+
+face_cascade = cv2.CascadeClassifier('haarcascade_frontalface_default.xml')
+eye_cascade =  cv2.CascadeClassifier('haarcascade_eye.xml')
+
+cap = cv2.VideoCapture(0)
+
+while 1:
+    ret, frame = cap.read()
+    gray = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)
+    
+    faces = face_cascade.detectMultiScale(gray, 1.3, 5)
+    i = 0
+    for (x, y, w, h) in faces:
+        i += 1
+        cv2.rectangle(frame, (x, y), (x+w, y+h), (255, 0, 0),2)
+        cv2.putText(frame,'face'+str(i) , (x, y+h),cv2.FONT_HERSHEY_SIMPLEX, 1, (255, 0, 0), 2)
+        
+        rof_gray = gray[y:y+h, x:x+w]
+        rof_color = frame[y:y+h, x:x+w]
+        
+        eyes = eye_cascade.detectMultiScale(rof_gray)
+        for (ex, ey, ew, eh) in eyes:
+            cv2.rectangle(rof_color, (ex, ey), (ex+ew, ey+eh), (0, 255, 0), 2)
+    
+    cv2.imshow('frame', frame)
+    k = cv2.waitKey(30) & 0xff
+    if k == 27:
+        break
+
+cap.release()
+cv2.destroyAllWindows()