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Using rostopic /image_raw for VideoCapture in OpenCV

asked 2014-05-23 22:10:45 -0500

delta785

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Hello, All of a sudden, I need to change my approach from calling TheVideoCapturer.open(0); (TheVideoCapturer is of a class VideoCapture) to open my internet camera (id 0) to subscribing to published image_raw topic. What are the easiest steps here? I'd like to use my TheVideoCapturer object still, because changing everything would be really troublesome.

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answered 2014-05-24 19:32:37 -0500

Hamid Didari

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first you must change your cv::mat image in to ros_image that's possible by cv_bridge and you can publish it.(for publishing you can use sensor_msgs::imageor image_transport)

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Asked: 2014-05-23 22:10:45 -0500

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Last updated: May 24 '14

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Using rostopic /image_raw for VideoCapture in OpenCV