def locate(self, image):
face = None
try:
face = self._face_detector.detect(image)
LOGGER.debug(_("Found the face"))
except FeatureNotFoundException:
return True
try:
left_eye = self._left_eye_detector.detect(face["image"])
LOGGER.debug(_("Found the left eye at %s"), left_eye)
except FeatureNotFoundException:
return True
try:
open_eye = self._open_eye_detector.detect(face["image"])
LOGGER.debug(_("Found an open eye at %s"), open_eye)
return True
except FeatureNotFoundException:
return False
def locate(self, image):
face = None
try:
face = self._face_detector.detect(image)
LOGGER.debug(_("Found the face"))
except FeatureNotFoundException:
return True
try:
left_eye = self._left_eye_detector.detect(face["image"])
LOGGER.debug(_("Found the left eye at %s"), left_eye)
except FeatureNotFoundException:
return True
try:
open_eye = self._open_eye_detector.detect(face["image"])
LOGGER.debug(_("Found an open eye at %s"), open_eye)
return True
except FeatureNotFoundException:
return False
def set_position(self, position=None):
'''Move pointer to position (x, y). If position is None,
no change is made.'''
self._moved = False
if position is not None:
LOGGER.debug(_('Moving pointer to %s'), position)
self._pointer.warp(self._screen, position[0], position[1])
self._moved = True
else:
LOGGER.debug(_('Not moving the pointer'))
def set_position(self, position=None):
'''Move pointer to position (x, y). If position is None,
no change is made.'''
self._moved = False
if position is not None:
LOGGER.debug(_('Moving pointer to %s'), position)
self._pointer.warp(self._screen, position[0], position[1])
self._moved = True
else:
LOGGER.debug(_('Not moving the pointer'))
def _exit_if_none_detected(self):
if len(self._plural) == 0:
message = _('Feature not detected: %s') % (self._name)
if self._last_attempt_successful:
self._last_attempt_successful = False
LOGGER.info(message)
raise FeatureNotFoundException(message)
else:
if not self._last_attempt_successful:
self._last_attempt_successful = True
message = _('Feature detected: %s') % (self._name)
LOGGER.info(message)
def _exit_if_none_detected(self):
if len(self._plural) == 0:
message = _('Feature not detected: %s') % (self._name)
if self._last_attempt_successful:
self._last_attempt_successful = False
LOGGER.info(message)
raise FeatureNotFoundException(message)
else:
if not self._last_attempt_successful:
self._last_attempt_successful = True
message = _('Feature detected: %s') % (self._name)
LOGGER.info(message)
def _load_plugin(self, class_string):
try:
LOGGER.info('loading %s', class_string)
class_path = class_string.split('.')
module = __import__('.'.join(class_path[:-1]), {}, {},
class_path[-1])
return getattr(module, class_path[-1])(self.config)
except ImportError:
LOGGER.error(
_('Could not import plugin `%s`. ' +
'Check config file and PYTHONPATH.'), class_string)
raise
class Camera(object):
S_CAPTURE_OPEN_ERROR = _(
'Device #%d does not support video capture interface')
S_CAPTURE_READ_ERROR = _('Error while capturing. Camera disconnected?')
def __init__(self, config):
self._config = config
self._device = self._new_capture_device(
config['camera']['device_index'])
self.set_dimensions(
config['camera']['width'],
config['camera']['height'],
)
@classmethod
def _new_capture_device(cls, device_index):
capture = cv2.VideoCapture(device_index)
if not capture.isOpened():
capture.release()
raise IOError(cls.S_CAPTURE_OPEN_ERROR % device_index)
return capture
def set_dimensions(self, width, height):
self._device.set(FRAME_WIDTH, width)
self._device.set(FRAME_HEIGHT, height)
def read_image(self):
ret, image = self._device.read()
if not ret:
raise IOError(self.S_CAPTURE_READ_ERROR)
return Image(self._config, image)
def _load_plugin(self, class_string):
try:
LOGGER.info('loading %s', class_string)
class_path = class_string.split('.')
module = __import__(
'.'.join(class_path[:-1]), {}, {}, class_path[-1]
)
return getattr(module, class_path[-1])(self.config)
except ImportError:
LOGGER.error(
_(
'Could not import plugin `%s`. ' +
'Check config file and PYTHONPATH.'
),
class_string
)
raise
def run(self, app):
'''Called each pass of the loop.'''
raise NotImplementedError(_('Must implement.'))
