how to use jrosbridge to transport an image.

[paive]

when i use jrosbridge, it occurs a difficult problem to me, i write a node using python which controls robot to take a picture and subscribes a topic, at the same time, i want to write a client using jrosbridge to publish on above topic and get the image through the topic, however i have no idea how to complete such tasks, is there any simple solutions?

[rctoris]

rosbridge converts all ROS topics into JSON strings. As a result, it is a poor choice as an image transporter. If you want to get the image topic in Java, I would suggest using http://wiki.ros.org/web_video_server to convert the ROS image topic into a MJPEG stream and using a Java library for reading in the MJPEG stream directly from the URL.