GDB OpenCV imshow This is a simple python extension script to visualize interactively OpenCV images while debugging with gdb. INSTALL 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 > 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 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 > cv_imshow image from within your gdb session.