hyperspectral multispectral imaging analysis image analysis plants painting heiroglyph palimpsest pigments quality elliot report safety food grain grains wheat oil seed rape oats seeds seed barley conservation heritage spectroscopy forensics inks fakes counterfeits fingerprints banknotes currency bioscience irritation skin agar counting colony blemish petri api tablets pharmaceuticals excipient powders roots disease flowers arabidopsis leaves fluorescence
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