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image_proc/crop_decimate generates no topics

I use realsense camera, where driver comes without camerainfo topic. Therefore I did calibration on my own and wrote my own node publishing camerainfo. Now I want to use cropdecimate from imageproc to downsample my image from 1920x1080 to 640x480, cause I need depth and rgb image in the same resolution.

I started the driver, my camerainfo node and the cropdecimate nodelet, which subscribes fine, but does not generate the output topics.

image description

Even if I subscribe to the topics, there are no Messages received.

Here is my launch file:

image description

Is crop decimate corrupted?

Asked by RodBelaFarin on 2015-07-21 07:44:24 UTC

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Answers

HI,

image_proc/crop_decimate subscribes following topics (wiki/crop_decimate):

camera/image_raw 
camera/camera_info

To me it seems like the remapping line is not correct:

<remap from="/camera/camera_info" to="/camera_info"/>

Just leave the line out. It is already the way it is supposed to be.

Hope that helped.

Asked by Cascanueces on 2016-01-08 09:21:15 UTC

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