/usr/bin/env pythonimportcv_bridgeimportnumpyasnpbridge=cv_bridge.CvBridge()mono=np.random.random((100,100))*255mono=mono.astype(np.uint8)input_msg=bridge.cv2_to_imgmsg(mono,encoding='mono8')print('input_msg height : {}'.format(input_msg.height))print('input_msg width : {}'.format...