[ros-users] camera calibration 320x240 ?

[Adam Leeper]

I saw the ticket earlier but now I can't find it anymore, I assume it is
closed? This brings up some questions (I'm new to managed projects):

1. Where can I find closed tickets? (e.g., I can't see the "work around
solution" if I can't find the ticket.)

2. If I am using the pre-built boxturtle install of ROS, how do I get
updates of this sort? Do i svn just the packages or files I know are
updated...?

Thanks,
Adam


Adam Leeper
Stanford University
aleeper at stanford.edu
719.358.3804


On Tue, Apr 6, 2010 at 1:29 PM, Patrick Beeson <beeson.p at gmail.com> wrote:

> Ticket 3951 that I submitted yesterday reports this bug and provides a
> "working" solution.
>
> James Bowman wrote:
> > Hi Adam
> >
> > Afraid this is a bug... please raise a ticket in the ROS trac against
> > image_pipeline, and assign it to me, jamesb
> >
> > Thanks.
> >
> > On Tue, Apr 6, 2010 at 11:26 AM, Adam Leeper <aleeper at stanford.edu
> > <mailto:aleeper at stanford.edu>> wrote:
> >
> >     Hi-
> >
> >     I've successfully used cameracalibrator.py on a 640x480 image
> >     stream, but now I'm trying to use it on a 320x240 image feed. I do
> >
> >     $rosrun camera_calibration cameracalibrator.py --size 7x6 --square
> >     0.0127 image:=/my_camera/image camera:=/my_camera
> >
> >     like the tutorial says, but it gives the following error:
> >
> >     Exception in thread Thread-4:
> >     Traceback (most recent call last):
> >       File "/usr/lib/python2.6/threading.py", line 525, in
> __bootstrap_inner
> >         self.run()
> >       File
> >
> "/opt/ros/boxturtle/stacks/image_pipeline/camera_calibration/nodes/cameracalibrator.py",
> >     line 59, in run
> >         self.function(m)
> >       File
> >
> "/opt/ros/boxturtle/stacks/image_pipeline/camera_calibration/nodes/cameracalibrator.py",
> >     line 147, in handle_monocular
> >         scrib = cv.CreateMat(self.height / scale, self.width / scale,
> >     cv.GetElemType(rgb))
> >     ZeroDivisionError: integer division or modulo by zero
> >
> >
> >     I think the issue is line 144 in cameracalibrator.py,
> >     scale = int(math.ceil(self.width / 640))
> >
> >     but if I try doing either 640.0, or changing it to 320, I get this
> error
> >
> >     Traceback (most recent call last):
> >       File "/usr/lib/python2.6/threading.py", line 525, in
> __bootstrap_inner
> >         self.run()
> >       File
> >
> "/opt/ros/boxturtle/stacks/image_pipeline/camera_calibration/nodes/cameracalibrator.py",
> >     line 59, in run
> >         self.function(m)
> >       File
> >
> "/opt/ros/boxturtle/stacks/image_pipeline/camera_calibration/nodes/cameracalibrator.py",
> >     line 187, in handle_monocular
> >         self.redraw_monocular(scrib, rgb)
> >       File
> >
> "/opt/ros/boxturtle/stacks/image_pipeline/camera_calibration/nodes/cameracalibrator.py",
> >     line 410, in redraw_monocular
> >         self.buttons(display)
> >       File
> >
> "/opt/ros/boxturtle/stacks/image_pipeline/camera_calibration/nodes/cameracalibrator.py",
> >     line 389, in buttons
> >         self.button(cv.GetSubRect(display, (x,180,100,100)),
> >     "CALIBRATE", self.goodenough)
> >     error
> >
> >     Any ideas?
> >
> >     Thanks!
> >     --Adam
> >
> >
> >
> >
> >
> >     Adam Leeper
> >     Stanford University
> >     aleeper at stanford.edu <mailto:aleeper at stanford.edu>
> >     719.358.3804
> >
> >     _______________________________________________
> >     ros-users mailing list
> >     ros-users at code.ros.org <mailto:ros-users at code.ros.org>
> >     https://code.ros.org/mailman/listinfo/ros-users
> >
> >
> >
> >
> > --
> > J.
> >
> >
> > ------------------------------------------------------------------------
> >
> > _______________________________________________
> > ros-users mailing list
> > ros-users at code.ros.org
> > https://code.ros.org/mailman/listinfo/ros-users
> _______________________________________________
> ros-users mailing list
> ros-users at code.ros.org
> https://code.ros.org/mailman/listinfo/ros-users
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.ros.org/pipermail/ros-users/attachments/20100406/5574b17c/attachment-0003.html>