Initial commit

OpenCV/tutoriel8-2/enregistrement_visage_V2.py

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+import cv2
+import operator
+import os
+import common as c
+
+video="Plan_9_from_Outer_Space_1959_512kb.mp4"
+cascade="./haarcascade_frontalface_alt2.xml"
+img_non_classees='non-classees'
+
+if not os.path.exists(video):
+    print("Le fichier video n'existe pas", video)
+    quit()
+
+if not os.path.exists(cascade):
+    print("Le fichier cascade n'existe pas", cascade)
+    quit()
+
+face_cascade=cv2.CascadeClassifier(cascade)
+cap=cv2.VideoCapture(video)
+
+if not os.path.isdir(img_non_classees):
+    os.mkdir(img_non_classees)
+    
+id=0
+while True:
+    ret, frame=cap.read()
+    if ret is False:
+        break
+    gray=cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)
+    face=face_cascade.detectMultiScale(gray, scaleFactor=1.2, minNeighbors=4, minSize=(c.min_size, c.min_size))
+    for x, y, w, h in face:
+        cv2.imwrite("{}/p-{:d}.png".format(img_non_classees, id), frame[y:y+h, x:x+w])
+        cv2.rectangle(frame, (x, y), (x+w, y+h), (0, 0, 255), 2)
+        id+=1
+    cv2.imshow('video', frame)
+    key=cv2.waitKey(1)&0xFF
+    if key==ord('q'):
+        break
+    if key==ord('a'):
+        for cpt in range(100):
+            ret, frame=cap.read()
+    for cpt in range(4):
+        ret, frame=cap.read()
+
+cap.release()
+cv2.destroyAllWindows()