Include image in roslaunch

edit

Hmm. I tried but did not get it working. This is how I am reading the image in the node: Mat objectMat = imread("te.jpg"); Will this be wrong?

So it's inside the code itself? I don't remember precisely, try placing the image either in the executable folder or launch file folder. With no need in using any args in launch file. You can also pass the image path as an argument - this way you wont need to copy your jpg.

It is in the code yes. Have tried to put it all over the place now, but still can't find it :( Have also tried to use args to the path like you suggested without any luck

Try if this works - imread("/home/username/te.jpg"); and put the jpg file in your user folder. For test its fine, but you shouldnt do it often :P

Anyway it's strange that locating your jpeg file in exe directory doesnt work. Do you put it in devel/lib/package_name/ folder?

Now it works :) Thanks a lot! Working in both "devel/lib/package_name/" and with your "imread("/home/username/te.jpg")" solution. Is it possible to get it copied into the "devel/lib/package_name/" folder when doing catkin_make?

Probably somehow it could be done. But you'd better use arguments, it will make your application more flexible.You do it by typing, for example, string name; name = argv[1] and then using it in imread (maybe with some easy data conversion from string to char *).

and then you can run your program with rosrun mynode mynode te.jpg, and THEN you can add args in your launch file. Hardcoding thingies isn't good