def set_auto_exposure(self, auto: int or float or bool) -> bool:
"""
sets the camera's auto exposure
:param auto: the new auto exposure
:return: True on success, False on failure
"""
raise AbstractMethodCallingException()
def _show_frame(self, frame) -> bool:
"""
shows the frame
:param frame: the frame to show
:return: False if the window should be closed, True otherwise
"""
raise AbstractMethodCallingException()
def read(self, image=None):
"""
reads from the camera and returns a tuple of a boolean and the frame
:param image: if not None, the frame will be read to this ndarray
:return: a boolean indicating if the action was successful, and the frame if read was successful, otherwise None
"""
raise AbstractMethodCallingException()
def _set_height(self, height: int):
"""
unsafe set height
supposed to be overridden and only used by rescale, resize and set_frame size methods
never to be used by the programmer, only by the api
:param height: new height
"""
raise AbstractMethodCallingException()
def _set_width(self, width: int):
"""
unsafe set width
supposed to be overridden and only used by rescale, resize and set_frame size methods
never to be used by the programmer, only by the api
:param width: new width
"""
raise AbstractMethodCallingException()
def __call__(self, frame, camera: Camera):
"""
finds all instances of the object in the frame
:param frame:
:param camera:
:return:
"""
raise AbstractMethodCallingException()
def height(self) -> int:
"""
:return: the height of a frame read from this camera
"""
raise AbstractMethodCallingException()
def width(self) -> int:
"""
:return: the width of a frame read from this camera
"""
raise AbstractMethodCallingException()
def data(self) -> CameraData:
"""
:return: this camera's constant descriptor (must be the real descriptor, can't be a copy)
when the values of this descriptor are changed, the values of the real camera descriptor must also change
"""
raise AbstractMethodCallingException()
def is_opened(self) -> bool:
"""
checks if the camera can be read from
:return: True if the camera can be read from, otherwise False
"""
raise AbstractMethodCallingException()
def release(self):
"""
closes the handle to this camera, if it is not necessary please override this method to a black method
"""
raise AbstractMethodCallingException()
def _close(self):
raise AbstractMethodCallingException()
def _open(self):
raise AbstractMethodCallingException()
def send_frame(self, frame):
"""
sends the given frame to the stream receiver
:param frame: the frame to send
"""
raise AbstractMethodCallingException()
def get_frame(self) -> np.ndarray:
"""
reads a frame from the stream and returns in
:returns: the frame read as a numpy array
"""
raise AbstractMethodCallingException()