working version

README.md

+# robot_face_visualizer

face_visualizer.py

+#!/usr/bin/env python
+
+import os
+import sys
+import rospy
+import timeit
+import cv2
+from sensor_msgs.msg import Image
+from std_msgs.msg import String
+
+
+
+def face_listener():
+  rospy.init_node('listener', anonymous=True)
+  rospy.Subscriber("/robot/xdisplay", Image, xdisplay_callback)
+
+
+def get_user_hr_callback(self, msg):
+  rospy.loginfo(rospy.get_caller_id() + "I heard %s", data.data)
+  rospy.spin()
+
+
+if __name__ == "__main__":
+  face_listener()
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