Before extracting any hardsubs, consider:
Safe use cases: Personal archive, language learning, accessibility for hearing-impaired (creating your own local copy), or extracting subtitles from your own videos. extract hardsub from video
If you have a clean, high-contrast video (like an anime with bright yellow subs), the default settings work wonders. However, real-world footage—especially from older TV rips or encoded streams—can be messy. OCR hates noise. Before extracting any hardsubs, consider:
To get better results, we need to leverage the API to fine-tune the parameters: If you have a clean, high-contrast video (like
from videocr import save_subtitles_to_file
Use FFmpeg to extract only the bottom portion of each frame (crop) to reduce noise and speed up processing.
ffmpeg -i input_video.mp4 -vf "crop=iw:100:0:ih-100, fps=1" subs_%04d.png
Explanation: