I have image_view running but I cant seem to send a recorded bag file I got from kinect

I just get a lot of crap dumped to the screen

#!/usr/bin/env python

import roslib; roslib.load_manifest('beginner_tutorials')

import rospy

import rosbag

from sensor_msgs.msg import Image

def bagread():

        pub = rospy.Publisher('image', Image)

        rospy.init_node('kinectsender')

        bag = rosbag.Bag('/home/chris/bagfiles/kinectDepthVideo.bag')

        for topic, msg, t in bag.read_messages(topics=['/kinect/depth/image_raw']):

                pub.publish(Image(msg))

        bag.close()

if __name__ == '__main__':

        bagread()