Tonescale Graph from Scanner with Improved Accuracy

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https://omeka-s.library.illinois.edu/s/illinois-digitization/item/4634
Title
Tonescale Graph from Scanner with Improved Accuracy
Description
The Tonescale graph improved with adjusted settings on the flatbed scanner (exposure accuracy, how light/dark it looks... just a little darker than ideal here overall except in the darkest darks). The visualization of the data makes it easier to pinpoint the issue and illustrate the improvements.