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image_proc/crop_decimate generates no topics

asked 2015-07-21 07:44:24 -0600

RodBelaFarin gravatar image

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

I started the driver, my camera_info node and the crop_decimate 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?

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answered 2016-01-08 08:26:48 -0600

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.

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Asked: 2015-07-21 07:44:24 -0600

Seen: 394 times

Last updated: Jan 08 '16