normalized image log slope

synonym: normalized image slope
acronym: NILS
https://doi.org/10.1351/goldbook.09545
Measure of the information content of the aerial image and represents an energy (intensity) gradient at the position of the nominal line edge.
Source:
PAC, 2020, 92, 1861. (Terminology of polymers in advanced lithography (IUPAC Recommendations 2020)) on page 1882 [Terms] [Paper]