Stochastic screening

Traditional amplitude modulation halftone screening is based on a geometric and fixed spacing of dots, which vary in size depending on the tone color represented (for example, from 10 to 200 micrometres).

The strategy of stochastic screening, which has existed since the seventies,[citation needed] has had a revival in recent times thanks to increased use of computer-to-plate (CTP) techniques.

In previous techniques, computer to film, during the exposure there could be a drastic variation in the quality of the plate.

Today, with CTP during the creation of the plate you just need to check a few parameters on the density and tonal correction curve.

The small dots used in FM screening require special care and cleanliness, especially when plates are made from films.