rostopic list | grep kinect2

gistfile1.txt

/kinect2/bond
/kinect2/hd/camera_info
/kinect2/hd/image_color
/kinect2/hd/image_color/compressed
/kinect2/hd/image_color_rect
/kinect2/hd/image_color_rect/compressed
/kinect2/hd/image_depth_rect
/kinect2/hd/image_depth_rect/compressed
/kinect2/hd/image_mono
/kinect2/hd/image_mono/compressed
/kinect2/hd/image_mono_rect
/kinect2/hd/image_mono_rect/compressed
/kinect2/hd/points
/kinect2/qhd/camera_info
/kinect2/qhd/image_color
/kinect2/qhd/image_color/compressed
/kinect2/qhd/image_color_rect
/kinect2/qhd/image_color_rect/compressed
/kinect2/qhd/image_depth_rect
/kinect2/qhd/image_depth_rect/compressed
/kinect2/qhd/image_mono
/kinect2/qhd/image_mono/compressed
/kinect2/qhd/image_mono_rect
/kinect2/qhd/image_mono_rect/compressed
/kinect2/qhd/points
/kinect2/sd/camera_info
/kinect2/sd/image_color_rect
/kinect2/sd/image_color_rect/compressed
/kinect2/sd/image_depth
/kinect2/sd/image_depth/compressed
/kinect2/sd/image_depth_rect
/kinect2/sd/image_depth_rect/compressed
/kinect2/sd/image_ir
/kinect2/sd/image_ir/compressed
/kinect2/sd/image_ir_rect
/kinect2/sd/image_ir_rect/compressed
/kinect2/sd/points

gistfile2.txt

(anaconda-2.1.0) potix2@ros% rostopic info /kinect2/sd/image_color_rect                                                                                                                    [~/catkin_ws] {}
Type: sensor_msgs/Image

Publishers: 
 * /kinect2 (http://ros:42318/)

Subscribers: None


(anaconda-2.1.0) potix2@ros%

tracker.py

#!/usr/bin/env python
"""
Script to retrieve sensor images from kinect
"""
import roslib
import rospy
import cv2
import sys
from std_msgs.msg import String
from sensor_msgs.msg import Image
from cv_bridge import CvBridge, CvBridgeError

class image_converter:

    def __init__(self):
        # subscribe to kinect image messages
        self.sub = rospy.Subscriber("kinect2/qhd/image_color", Image, self.image_callback, queue_size=1)
        self.bridge = CvBridge()

    def image_callback(self,data):
        try:
            cv_image = self.bridge.imgmsg_to_cv2(data, "bgr8")
        except CvBridgeError as e:
            print(e)

        cv2.imshow("Image window", cv_image)
        cv2.waitKey(3)

def main(args):
    ic = image_converter()
    rospy.init_node('kinect_tracker')
    try:
        rospy.spin()
    except KeyboardInterrupt:
        print("Shutting down")
    cv2.destroyAllWindows()

if __name__ == '__main__':
    main(sys.argv)