display multiple windows using image_view

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Hi, all,

If there two image topics: One is /camera/rgb/image_color, the other is /camera/mono/image_mono

I want to view these two topics in two separate window: Then, I try:

rosrun image_view image_view image:=/camera/rgb/image_color

And then open a new terminal and issue:

rosrun image_view image_view image:=/camera/mono/image_mono

However the latter one window will cover the first one. What other parameters for image_view I should append to the command?

THX~