Hi Josh,
Using a null deleter and shared_ptr works properly.
Thank you,
Soonhac
On 11/19/2010 01:24 PM, Josh Faust wrote:
> Ah, but it looks like fromImage is deprecated. Does anyone know why
> there's no longer a way of turning a non-shared pointer of a
> sensor_msgs/Image into a cv image?
>
> In the meantime you could use a null deleter and create a shared_ptr
> out of the image:
>
> void nullDeleter(void*) {}
> boost::shared_ptr<sensor_msgs::Image>
> image_ptr(&srv.response.left_image, nullDeleter);
>
> Josh
>
> On Fri, Nov 19, 2010 at 1:18 PM, Josh Faust <jfaust@willowgarage.com
> <mailto:jfaust@willowgarage.com>> wrote:
>
> What was the compile error you got originally? That's not a valid
> cast to be making.
>
> There's a version of fromImage that just takes the
> sensor_msgs/Image -- are you sure that srv.response.left_image is
> a sensor_msgs/Image?
>
> Josh
>
> On Fri, Nov 19, 2010 at 12:49 PM, Soonhac Hong
> <soonhac.hong@gmail.com <mailto:soonhac.hong@gmail.com>> wrote:
>
> Hi all,
>
> I'm trying to convert sensor_msgs/Image to the opencv image. The
> sensor_msgs/Image is defined in the ros service as follows.
>
> <temp_srv.srv>
> bool isColor
> ----
> sensor_msgs/Image left_image
>
>
> The problem has happened at the following code.
>
> IplImage* left_image = bridge_.imgMsgToCv((const
> sensor_msgs::ImageConstPtr&) srv.response.left_image,
> "passthrough");
>
> Without the casting,(const sensor_msgs::ImageConstPtr&), there
> was an
> compile error. With the casting, there is a runtime error,
> segmentation
> fault. Is there anyone to know how to get the
> sensor_msgs::ImageConstPtr& of the sensor_msgs/Image which is
> defined in
> the ros service?
>
> I confirmed that there are the proper value of each pixel in the
> srv.response.left_image.data[] as well as
> srv.response.left_image.width
> and srv.response.left_image.hight.
>
> Thank you for any comments.
>
> Best,
> Soonhac
>
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