I want to export subtitles of images(pgs) with CLI

[hifumin]

I have movie data that BD has riped, with subtitles inside.
Just that subtitle is saved as an image.It is probably pgs.
So I'd like to export that image with CLI.
Is there a good tool?
Please answer.

I will also post movie information from ffmpeg.

Stream #0:0: Audio: flac, 48000 Hz, stereo, s32 (24 bit) (default)
Stream #0:1: Subtitle: hdmv_pgs_subtitle (default)
Stream #0:2: Subtitle: hdmv_pgs_subtitle

[sneaker]

Export to what format?

ffmpeg -i "input" -map 0:1 -c copy "output.sup"

https://trac.ffmpeg.org/wiki/Map

[hifumin]

Thanks for the reply sneaker.
I did not know the sup file format.
A sup file could be output with this command.
As an additional question, can you break this sup into xml and png, for example?
In the end I would like to ocr this image using "google cloudvison".
So I want to extract image files from sup.

[sneaker]

BDSup2Sub can convert to XML+PNG. Is has both GUI and CLI and the Java version should run on multiple platforms.

[hifumin]

Thank you sneaker.
It was realized with this command.
java -jar BDSup2Sub.jar -o hoge.xml output.sup.