The Google Drive folder contains the following readme text:
There are 4 folders, each containing 12, 2 cm^2 images scanned at 4800 DPI resolution.
You may access the files individually on Google drive or download the entire set; testscans. ZIP file is included for your convenience here.
These scans were from Kromekote® collectors sprayed with .2% Rhodamine WT 20% grade tracer. Application was made by 4 different methods that created 4 different droplet spectra. A 5th folder with a scan of a blank, unsprayed Kromekote card is also included.
When sprayed, these cards were stratified through a canopy of approximately 60-70 cm height. They are labelled by the following: