[ros-users] cvbridge conversion failure

Josh Faust jfaust at willowgarage.com
Thu May 20 16:52:06 UTC 2010

>         IplImage* dispImg =
> bridge[2].imgMsgToCv(&(disparity_msg->image), "passthrough");
> and let boost::shared_ptr do its magic.
> Or, is there something more subtle I just missed?
shared_ptr will not (and cannot) autoconvert from a pointer.  Explicitly
creating a shared_ptr naively from image in this case will cause shared_ptr
to try and delete that pointer, which will crash since that pointer is not
valid for deletion.

I believe you can do something like the following (untested):

sensor_msgs::ImageConstPtr image_ptr(disparity_msg, &disparity_msgs->image);

This will share the reference count with disparity_msg, but act like a
pointer to an Image.

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.ros.org/pipermail/ros-users/attachments/20100520/7dae573b/attachment-0003.html>

More information about the ros-users mailing list