This is a simple python extension script to visualize interactively OpenCV images while debugging with gdb.
Requires python 3 by default (for python 2, refer to branch py2 ).
It seems that gdb is using python 3 by default in newer versions of Ubuntu
from discussions here.
You need to have gdb (version 7.2 or newer).
You can try to use the cv_imshow command by sourcing it first from within a gdb
session with the command
gdb> source cv_imshow.py
(insert the path to the cv_imshow.py file on your machine, if it is not in the
gdb current working directory). You can also add the command to your .gbdinit
file if you do not want to source it at each session.
Usage is extremely simple, once you have sourced the file. If the variable you
want to inspect (i.e., show) is a cv::Mat or an IplImage with name 'image',
all you need to do is
gdb> cv_imshow image
from within your gdb session.
To use the demo
$ cd gdb-imshow
$ mkdir Debug
$ cd Debug
$ cmake -DCMAKE_BUILD_TYPE=Debug ..
$ make
$ gdb ./main