List possible types of metadata to be extracted from scans

miller-center / cpc-issues

Connecting Presidential Collections

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List possible types of metadata to be extracted from scans #5

Open waldoj opened 11 years ago

waldoj commented 11 years ago

To get started:

identify typed text versus handwritten text, with per-page granularity
isolate individual page boundaries, paragraph boundaries, lines, and words
identify, isolate, and OCR letterhead
determine where multi-page documents start and stop
OCR the between-page on-microfilm finding aids

waldoj commented 11 years ago

Image density. That is, what percentage of the pixels are white, and what percentage are non-white? I forecast that we'll find that the pages in a given letter tend have the same density. But I also worry that the range won't be great enough to be able to use that information to know where one document stops and another one starts.

It's worth trying this with a histogram, too. Obviously, that's more complicated than a simple black/white calculation.

waldoj commented 11 years ago

Overlaid metadata. Some page scans include things like page numbers in the bottom corner, or origin labels in the top. This is important to include, not least of which because it allows us to match up scans with finding aids.