Hello,
I try to setup a Service which provides single images out of an image_transport stream to a client requesting an image.
I found this Question 42909 (Karma not sufficient to post links, sorry.) which is in principal what I need.
answers.ros.org/question/42909/how-can-i-use-a-servicerequest-to-capture-a-single-callback-from-a-subscription/
Since I'm new to ROS and the example is simplified I'm stuck at the point where the image is presented to the client.
What I would need to know is:
1) How does the srv file look like to use the example. (If a srv file is needed at all)
2) How can I actually get access to the image on client side to do image processing on it. In the example this part is simplified with the comment: read_grab() ?
I searched ROS answers for hours with no success so I hope somebody understands my problem description and is willing to help.
thanks in advance HXP2
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