Rms Granularity

Some articles on rms granularity, granularity, rms:

Film Grain - RMS Granularity
... Granularity, or RMS granularity, is a numerical quantification of film-grain noise, equal to the root-mean-square (rms) fluctuations in optical density, measured with a ... Granularity is sometimes quoted as "diffuse RMS granularity times 1000", so that a film with granularity 10 means an rms density fluctuation of 0.010 in the standard aperture area ... aperture area measures an average of many particles, so the granularity is small ...