def __init__(self): """ Initialises the camera and sets the isFirstFrame attribute to allow creation of the encoder on first frame only """ PiCamera.__init__(self) self.isFirstFrame = True
class ThePiCamera(Camera): """ Class for Raspberry Pi camera frame retrieval. """ def __init__(self): """ Constructor for ThePiCamera. This initializes parameters for Raspberry Pi camera capture. """ self.camera = PiCamera() self.camera.resolution = (640, 480) self.camera.framerate = 32 self.rawCapture = PiRGBArray(self.camera, size=(640, 480)) time.sleep(0.1) # allow the camera to warm up def get_iterator(self): """ Returns an iterator for obtaining a continuous stream of camera frames. """ return self.camera.capture_continuous(self.rawCapture, format='bgr', use_video_port=True) def get_frame(self, raw_frame): """ Retrieves the camera frame returned by the iterator, converted into a 2D array. """ array = raw_frame.array self.rawCapture.truncate(0) return array def destroy(self): """ Cleans up memory used for Raspberry Pi camera capture. """ self.camera.close()
def __init__(self): """ Constructor for ThePiCamera. This initializes parameters for Raspberry Pi camera capture. """ self.camera = PiCamera() self.camera.resolution = (640, 480) self.camera.framerate = 32 self.rawCapture = PiRGBArray(self.camera, size=(640, 480)) time.sleep(0.1) # allow the camera to warm up
def get_image(): camera = PiCamera() camera.capture("photo.jpg") camera.close() return send_file('photo.jpg', mimetype='image/gif')