Ever encountered a video of instrument play with single-line scores/tabs at the bottom, but can't find the full score anywhere? This simple tool extract the scores/tabs from videos and stitch them into a multi-page PDF.
git clone https://github.com/mdw771/tab_extractor.git
cd tab_extractor
pip install -e .
The tool takes frames from a video with the user-specified time range, time step, and spatial bounding box. It then finds the frames that are sufficiently different from the previous one, and add it to the buffer. Finally, the frames are stitched and paginated into a PDF.
See demos/extract.py for an example.
Currently, it only works with videos where tabs/scores are displayed in a "slide-show" manner. Constantly rolling ones are not supported yet.