ABSTRACT
Traditional measurements in imaging science include densitometry, spectrophotometry, and image structure. In densitometry, macroscopic optical densities are measured as a function of wavelength in either the transmission or the reflection domain. In image structure, measurements include microdensitometry, also known as granularity measurements, and determination of the modulation transfer function (MTF). Microdensitometry provides statistical information on the distributions of microscopic crystal structures in photographic film. MTF measurements determine modulation as a function of spatial frequency in transmission gratings manufactured with either atomic or molecular films. All these imaging measurements, as related to molecular structures, are described in detail by Dainty and Shaw [1].
