              The CV2 interpolator required to transform this mask to it's original frame
          """
          logger.trace("mask shape: %s, mask dtype: %s, mask min: %s, mask max: %s, "
                       "affine_matrix: %s, interpolator: %s)", mask.shape, mask.dtype, mask.min(),
                       mask.max(), interpolator)
          self._affine_matrix = self._adjust_affine_matrix(mask.shape[0], affine_matrix)
          self._interpolator = interpolator
          mask = (cv2.resize(mask,
                             (self.stored_size, self.stored_size),
                             interpolation=cv2.INTER_AREA) * 255.0).astype("uint8")
 
</s> remove         logger.trace(self._thread)
 </s> add         logger.debug("Set thread: %s", self._thread) </s> remove         if self._thread is not None:
 </s> add         logger.debug("Setting thread")
        if self._thread is not None and self._thread.is_alive():
            logger.debug("Thread pre-exists and is alive: %s", self._thread)
                     affine_matrix, mask.max(), interpolator)
              The CV2 interpolator required to transform this mask to it's original frame
          """
          logger.trace("mask shape: %s, mask dtype: %s, mask min: %s, mask max: %s, "
                       "affine_matrix: %s, interpolator: %s)", mask.shape, mask.dtype, mask.min(),
                     affine_matrix, mask.max(), interpolator)
          self._affine_matrix = self._adjust_affine_matrix(mask.shape[0], affine_matrix)
          self._interpolator = interpolator
          mask = (cv2.resize(mask,
                             (self.stored_size, self.stored_size),
                             interpolation=cv2.INTER_AREA) * 255.0).astype("uint8")
keep keep keep keep replace keep keep keep keep keep
 Bugfix: Extract - Fix serial processing 
lib/faces_detect.py