[ros-users] How can I run camera_calibration with images offline

Caroline Pantofaru pantofaru at willowgarage.com
Tue May 4 17:55:26 UTC 2010

I frequently convert bags to AVIs using bag_to_images and mencoder. It's
quick and easy and lets you control the quality and size of the final video.

On Tue, May 4, 2010 at 9:26 AM, Jack O'Quin <jack.oquin at gmail.com> wrote:

> On Tue, May 4, 2010 at 11:16 AM, Radu Bogdan Rusu <rusu at willowgarage.com>
> wrote:
> >
> >
> > Jack O'Quin wrote:
> >> No, but a question for the ROS community: are there tools to convert
> >> ROS Image bags to and from AVI format?
> >
> > There's no tools right now, but it shouldn't be hard to write some. The
> former (to avi) could be done using
> > bag_to_images and then mencoder. The latter (from avi) would require you
> to write something new based on rosbag's record
> > C++ API.
> Thanks, Radu.
> We recently needed to convert some bags to AVI for one of the
> students. I believe we ended up doing a fast-and-dirty screen capture
> of some sort. Using bags_to_images and mencoder should work much
> better.
> If we get the chance, maybe we'll write some generally usable scripts
> for this. If someone else does it first, please let us know. :-)
> --
>  joq
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