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I'm also have the same issue with image_view freezing after a few seconds (tested using webcam input): Ubuntu 14.04, Indigo, image_view version 1.12.9. Unfortunately compiling image_view 1.12.5 didn't fix the problem for me.

Enabling autosize and adding a blank title seems to extend the time to freeze (up to about a minute). It's not a solution, but seems to help:

rosrun usb_cam usb_cam_node &
rosrun image_view image_view image:=/usb_cam/image_raw _autosize:=true _window_name:=""

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