import cv2,io,imutils
import numpy
from imutils.video import VideoStream
print("Starting Camera...........")
webcam = VideoStream(0).start()
webcam.resolution = (640, 320)
detector= cv2.CascadeClassifier('haarcascade_frontalface_default.xml')
cap = cv2.VideoCapture(1)
def getFrame():
jpegBuffer = io.BytesIO()
webcam.capture(jpegBuffer, format='jpeg')
buff = numpy.fromstring(jpegBuffer.getvalue(), dtype=numpy.uint8)
return cv2.imdecode(buff, 1)
while(True):
ret,img = cap.read()
gray = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
faces = detector.detectMultiScale(gray, 1.3, 5)
for (x,y,w,h) in faces:
img= cv2.rectangle(img,(x,y),(x+w,y+h),(255,0,0),2)
cv2.imshow('Screen',img)
if cv2.waitKey(1) & 0xFF == ord('q'):
break
cap.release()
cv2.destroyAllWindows()
try to use either VideoCapture(0) or VideoStream(0) , but not both (assuming, you only have a single webcam)
Above source can be used both either webcam or picamera for merely raspberry pi . To use webcam change this
cap = cv2.VideoCapture(1)to cap = cv2.VideoCapture(0)Didn't u wrote the code by urself?
It worked for me. I can used either webcam or picamera.
@berak, said. U can disable picamera or unplug picamera. But I don't used imutils library. The VideoStream is for webcam. So u set cap = cv2.VideoCapture(0). The pi VideoStream is for picamera.
U never put this on window.