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Detect Faces Using Python

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	`1`	`+import cv2`
	`2`	`+`
	`3`	`+face_cascade = cv2.CascadeClassifier("haarcascade_frontalface.xml")`
	`4`	`+`
	`5`	`+def detect():`
	`6`	`+ cap = cv2.VideoCapture(0)`
	`7`	`+`
	`8`	`+ while True:`
	`9`	`+ _,img = cap.read()`
	`10`	`+`
	`11`	`+ gray = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)`
	`12`	`+`
	`13`	`+ face = face_cascade.detectMultiScale(gray, 1.1, 4)`
	`14`	`+`
	`15`	`+ for (x,y,w,h) in face:`
	`16`	`+ cv2.rectangle(img, (x,y), (x+w,y+h), (0,255,0), 2)`
	`17`	`+`
	`18`	`+ cv2.imshow("Face Detect", img)`
	`19`	`+`
	`20`	`+ if cv2.waitKey(1) == 27:`
	`21`	`+ break`
	`22`	`+`
	`23`	`+ cap.release()`
	`24`	`+`
	`25`	`+detect()`

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