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# Changing Parameters
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One must be careful changing parameters for the camera, this is basically try and error. To see parameters as soon as v4l2_camera_node is running, enter `ros2 param list`. To set an array of pixel value output e.g. use `ros2 param set /v4l2_camera image_size "[1024, 768]"`
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For workaround, one could also navigate into the src folder of v4l2_camera package and change the default values in v4l2_camera.cpp |
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