Densitometry is the quantitative measurement of optical density in light-sensitive materials, such as photographic paper or photographic film, due to exposure to light. Optical density is a result of the darkness of a developed picture and can be expressed absolutely as the number of dark spots (i.e., silver grains in developed films) in a given a... Found on http://en.wikipedia.org/wiki/Densitometry
(den″sĭ-tom´ә-tre) determination of variations in density by comparison with that of another material or with a certain standard. Found on http://www.encyclo.co.uk/local/21001
Densitometry is a technique to help evaluate a patients candidacy for hair transplantation and predict future hair loss. It analyzes the scalp under high-power magnification to give information on hair density, follicular unit composition and degree of miniaturization. Found on https://www.bernsteinmedical.com/hair-loss/faq-myths-more/glossary/