Do you understand stochastic screening techniques?

Random screening is a method of replicating the density and color of an image by controlling the density of dots in a given area, keeping the size of each dot unchanged. When a certain color in a particular area is to be reduced, a smaller number of dots can be used instead of smaller size dots.

One of the main advantages of the stochastic screening technique is that a large number of small dots are used to represent the image, so that a finer copy image can be obtained than a conventional mesh tune-up screen, and even close to the photographic continuous-tone image effect. The stochastic screening technology can effectively solve the common moiré problem in the traditional screening technology, especially the moire formed between different color separation sheets.

The new stochastic screening technology has made great progress compared with the random screening technology that has been used in the past. It not only uses the idea that the dot size can be changed in the traditional mesh adjustment and adding network technology, but also applies the random variation of the dot distribution variation. Web thinking. However, the tolerance of traditional screen image replication for printing process is better than that of random screen images. The dot gain produced during printing is also less than that of a random screening technique.

Therefore, people usually use stochastic screening techniques in high-light areas (10% and below) and dark areas (90% and Internet point areas). In other image areas, traditional screening techniques are still used to create combinations. Web technology.