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hi i had a problem like this when i want to use roslaunch usb_cam-test.launch , so i did these : 1.rosdep update 2.sudo apt-get install ros-indigo-image-pipeline 3.rosdep install camera_calibration so after that exchange mjpeg with yuyv in launch file and then run : roslaunch usb_cam-test.launch now you should see your image goodluck

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