Ffmpeg can extract images from a video file.  I used imagemagik to do a CGA palettized version of a video and ffmpeg to stitch it all back together.

I can get the flags..

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On Thu, Jan 31, 2019 at 3:16 PM +0800, "Alec Muffett" <alec.muffett@gmail.com> wrote:

Has anyone ever attempted to OCR a video, perhaps by breaking into frames and then aggregating the results, using multiple frames to correct each other?

On Wed, 30 Jan 2019, 19:51 Richard Salz <rich.salz@gmail.com wrote:
Some folks are trying to figure out how to get AberMud source online and working; see https://twitter.com/larsbrinkhoff/status/1056823314272960512