can this toolkit be used without dependency on ROS?

[praveen5733]

Hi,

I have a .bag file with images and depth maps I want to process to extract the images from it.
I was trying to use the script bag2image.py ,
I could install all the packages rosbag,roslib and rospy without ros dependency but could not install message_filters. Do we need a ros setup to run this script? If not how was the message_filters installed?