Types of original images in the digital collections
TIFF
Black and white colorspace
RGB colorspace
PDF
Software needed to generate derivatives:
See Aptfile below.
Diagnostics for derivative generation software
These are now automated in a suite of tests you can run with. ./bin/rspec system_env_spec. See https://github.com/sciencehistory/scihist_digicoll/blob/master/system_env_spec/README.md .
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