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unable to visualize disparity

asked 2017-03-23 05:24:16 -0500

arpad
1 ●1 ●1 ●1

updated 2017-03-27 11:23:11 -0500

When following the instructions of the tutorial http://wiki.ros.org/stereo_image_proc... , I am unable to see disparity images. All commands run without errors, and I have fixed the bag, but the windows 'left' 'right' and 'disparity' are empty desktop .