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2013-05-26 07:04:35 -0500 | commented answer | ROSTopics: Only advertiser can publish? What that means is that multiple nodes may advertise the same ROS topic, is that right? |
2013-05-26 06:15:27 -0500 | asked a question | ROSTopics: Only advertiser can publish? This is a simple question about the ROS communication between nodes. Only the node that advertises a topic can publish to it? |
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2013-03-12 04:57:11 -0500 | commented answer | Error when converting IR kinect image to CvImage using cv_bridge I don't understand what ImageIn_ is .. is it a cv_bridge::CvImagePtr ?? |
2013-03-11 06:13:28 -0500 | commented answer | error: cannot convert ‘cv::Mat’ to ‘const CvArr* - Video from ROS node to OpenCV Can you please show me the code you have for the node which is serving the image? |
2013-03-11 06:10:56 -0500 | commented answer | Error when converting IR kinect image to CvImage using cv_bridge Can you please share the whole code? I have the exact same problem and your solution is not working. If I try to run toCvCopy without a 2nd argument I get the same exception (Unrecognized enconding). |
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2013-03-11 05:52:25 -0500 | answered a question | error: cannot convert ‘cv::Mat’ to ‘const CvArr* - Video from ROS node to OpenCV Can you please show me the code you have for the node which is serving the image? |
2013-03-11 05:33:21 -0500 | commented answer | openvc/cv_bridge encoding No matter what enconding type I use, I always get the same message: [ERROR] [1363015855.837613897]: cv_bridge exception: Unrecognized image encoding []. Can you please help me? |
2013-03-06 03:33:09 -0500 | asked a question | Image transfer issue: cv_bridge Hey everyone. I'm a complete newbie in ROS and am attempting to create a simple publishing/subscribing image platform. Some ROS tutorials regarding this issue use a deprecated protocol (CvBridge) so I'm stuck. Here is what I have so far: Image server (adapted from image_transfer tutorial (can't post links)): And the Image Client (taken from UsingCvBridgeToConvertBetweenROSImagesAndOpenCVImages): This doesn't work. Here is the output when I run the client and then the server: In the I can visualize the image in the server side, and rostopic echos the correct data about the image. So obviously the problem is in the way I am receiving the image. Any thoughts? |
2013-03-06 03:28:26 -0500 | asked a question | Image transfer problem: ros_bridge Hey everyone. I'm a complete newbie in ROS and am attempting to create a simple publishing/subscribing image platform. Some ROS tutorials regarding this issue use a deprecated protocol (CvBridge) so I'm stuck. Here is what I have so far: Image server (adapted from image_transfer tutorial (can't post links)): And the Image Client (taken from UsingCvBridgeToConvertBetweenROSImagesAndOpenCVImages): This doesn't work. Here is the output when I run the client and then the server: In the I can visualize the image in the server side, and rostopic echos the correct data about the image. So obviously the problem is in the way I am receiving the image. Any thoughts? |
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2013-03-06 02:33:40 -0500 | asked a question | Trouble with image transfer: cv_bridge issues Hey everyone. I'm a complete newbie in ROS and am attempting to create a simple publishing/subscribing image platform. Some ROS tutorials regarding this issue use a deprecated protocol (CvBridge) so I'm stuck. Here is what I have so far: Image server (adapted from image_transfer tutorial (can't post links)): And the Image Client (taken from UsingCvBridgeToConvertBetweenROSImagesAndOpenCVImages): This doesn't work. Here is the output when I run the client and then the server: And using the rostopic echo to check what message is being sent this is what I get: So obviously the problem is in the way I am transferring the image. Any thoughts? |