\defgroup imagesampler Image Sampler \ingroup management

The image sampler subscribes to an image topic, then republishes the images at a different rate and resolution.

To start using the image sampler, you must call the <node name>/configure service, with the following fields:

Field	Type	Description
enable	bool	Enables or disables the image sampling.
width	int	The width of the output image.
height	int	The height of the output image.
rate	float	The rate to publish the output image, in Hz.

Then, the node will publish an image at the desired resolution and rate, with the topic name <node name>/image.

The image to read is specified through the command line argument --input_topic.