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> 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
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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