1 (edited by joan 2020-Nov-16 19:22:36)

Topic: OpenCV: Bad input roi & Bitmap region is already locked.

Hi,

I have been using Kinovea to track an object in a video. I am using the perspective grid and setting the calibration accordingly.

This has been working fine for a few weeks and I have processed quite a lot already, but today I have had this error message occure multiple times. Sometimes it will be fine and work, other times this error message.

https://i.imgur.com/0LKNhS8.jpg

I was using the Beta version 0.9.1 (64bit windows) and have installed and tried the beta version 0.9.3 but getting the same error.

This was working flawlessly last week, and have not updated or shut down my machine since (only slept) so I am not sure what the issue could be.

I will try the non-beta version but I am not sure how to track pints and calibrate the perspective grid.

Kind regards,
Chris