Understood. I have seen that the software for newer hardware has an option to detect dirt, but it’s not available for my model. Even if it was available, it will not go back and check old scans. Is there something I can do to detect, or is it to complicated?
If I need to manually check old ones, I can accept that, but even for future scans, it would be great to have something, so if I didn’t have it correct for slightly skewed images, I would need to check for the streak and then correct the skew, so if that is something opencv could do then I would try that