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Internet Text Protocols for Internet Messages like Usenet, Email, and so on, over various transports, while incredibly ubiquitous, arguably are very verbose compared to more compressed binary formats, and their specifications, also in text, run into the hundreds of kilobytes, or, if a bit less so, kibibytes.
That post is a bit of a digest over posts over some years.
And think, for all that, a JPEG picture of a housecat is only in the megabytes, or mebibytes, and worth _at least_ a thousand words.
Please excuse (and ignore) if it's unwanted, then a few different ideas in it explore things like "region connection calculus" and "pyramidal hierarchical" approaches to sifting through files.