Relating to or involving the measurement of optical density or darkness in photographic or radiographic materials.
From densitometer + -ic suffix (Greek -ikos). This adjective allows the technical field to be used as a modifier in scientific papers and descriptions.
Densitometric analysis of historical photographs and documents can reveal hidden layers, alterations, and even 'ghost images' on old film that the human eye can't see—it's like forensic science for images.
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