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Actually, I am new to ROS and its features. I want to know the code for subscriber and publisher for taking picture from my integrated laptop webcam and store in the hard drive. I am familiar with gscam feature to take pictures from my webcam. But i want to use it as subscriber and publisher. please help.
See there http://wiki.ros.org/usb_cam
is an v4l driver
install the packet
sudo apt-get install ros-indigo-usb-cam
source PATH_TO_YOUR_WS/devel/setub.bash
and you have a video publisher
and some more code https://rosstitchernode.wordpress.com...
Install UVC
sudo apt-get install install ros-indigo-libuvc ros-indigo-libuvc-camera
sudo echo '# UVC cameras SUBSYSTEMS=="usb", ENV{DEVTYPE}=="usb_device", ATTRS{idVendor}=="04f2", ATTRS{idProduct}=="b2eb", MODE="0666"' > /etc/udev/rules.d/99-uvc.rules
where the ID (idvendor and idProduct from you wabcam)
sudo rmmod snd-usb-audio
Test
doesn't help.. can you give me a sample code for it?
http://pharos.ece.utexas.edu/wiki/ind...
there is some exampel code for the usage ov usb_cam
if you are talking about image transport then I know it..and I can use gscam for taing snaps but not as subscriber and publisher. Rather, I want to take snaps from my webcam by subscriber and publisher. which is getting me in trouble.
in the link that you gave in the above comment, "rosmake --rosdep-install" is not working. secondly, it's not the code for subscriber and publisher, it's just a launch file code.
Say exactly what you like to have. A Program wicht publish picture. Write your self a Program witch read the camera and publish the picture.
subscriber: you like only to see the pricture you like to work with the picture
you like to trigger a photo with you subscriber and then compute the picture
thanks for updated answer..but I am getting error as follows when I run the launch file:- "[ERROR] [1435430293.861984376]: Webcam: expected picture but didn't get it..." I can see my camera gets activated but no image is shown in the pop up window..its just full black.. any suggestions?
Oh I got it. I just had to change the pixel format. thanks for the help. can you please tell me how to do the same using uvc_cam/libuvc_cam. In this case also my camera gets activated but no image is there in the window.
Asked: 2015-06-22 13:38:52 -0500
Seen: 4,452 times
Last updated: Jun 28 '15
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