Use (from the README)

[Atcold]

Just typing what is written in the main README file gives me the following

t7> require 'camera'
t7> camera.testme()
--------------------------------------------------
grabbing frames from your camera for about 10secs
initializing camera
camera initialized
Cleaned up camera.
stopping camera 
done: create your own frame grabber with image.Camera() 
--------------------------------------------------
t7> cam = image.Camera()
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
image.Camera

> usage:
image.Camera{
    [idx = number]                      -- camera index  [default = 0]
    [width = number]                    -- frame width  [default = 640]
    [height = number]                   -- frame height  [default = 480]
}

image.Camera{width=number, idx=number}
image.Camera(number, ...)
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++:
{}
/usr/local/share/lua/5.1/xlua/init.lua:311: error
stack traceback:
        [C]: in function 'error'
        /usr/local/share/lua/5.1/xlua/init.lua:311: in function 'error'
        /usr/local/share/lua/5.1/xlua/init.lua:519: in function 'unpack'
        /usr/local/share/lua/5.1/camopencv/init.lua:17: in function '__init'
        /usr/local/share/lua/5.1/torch/init.lua:45: in function </usr/local/share/lua/5.1/torch/init.lua:41>
        [C]: in function 'Camera'
        [string "cam = image.Camera()"]:1: in main chunk
        [C]: at 0x010fb43d80

The 10 seconds test does work (even if the aspect ration is wrong), the frame grabber doesn't