Image extracting from Videos

Extracting Images
In order to extract images for photogrammetry and/or machine learning, I needed a variety of images that are very diverse in the scene, if you extract all images from videos there isn't much diversity of perspective. In order to do this I installed ffmpeg and took some OBS screencaptures from gameplay and went to work:

Here's the line that extracts images

ffmpeg -i lucio.mp4 -vf "select=not(mod(n\,100))" -vsync vfr -q:v 2 img_%03d.jpg

https://superuser.com/questions/391257/extracting-one-of-every-10-frames-in-a-video-using-vlc-or-ffmpeg

Labeling Images
Once I had all the images extracted, I wanted to use them to retrain a yolo object detector, I found and used this tool. As an aside I jotti virus scanned it too - it was clean, I used the windows version. It was super easy to use! I'll do a subsequent post if i build an interesting AI model.

https://github.com/developer0hye/Yolo_Label