Abstract: A method for producing printing forms by way of irregularly-distributed printing points provides that an image original be opto-electrically scanned across individual surface elements with a desired detail resolution. A gray scale corresponding to the scanning signal is assigned to each surface element and surface elements of the same or approximately the same gradation are combined into sub-surfaces and the individual sub-surfaces are reproduced in accordance with their gradation value by way of a plurality of statistically-distributed printing points whose overall surface coverage within the sub-surface corresponds to the gradation of the sub-surface, whereby the combination of the sub-surfaces is undertaken in accordance with the actual boundaries of the same or approximately the same gradation within the original image.

Abstract: Method for producing a printing form by means of scanning a master and the recording surfaces in accord with a scanning raster or, respectively, a conforming recording raster upon employment of a random generator for the distribution of smallest points which are still printable to each raster field of the recording surface, whereby the plurality of said points which are still printable determines the respective tonal value and each raster field at the original side is resolved by means of fine-scanning into surface elements and the elements of approximately identical tonal value are combined to form sub-surfaces. Each raster field at the recording side is composed of surface elements and sub-surfaces, whereby the surface elements of the sub-surfaces at the recording side receive tonal values corresponding in terms of statistical mean, in that the sub-surfaces on the recording side, statistically distributed, are filled with a corresponding plurality of smallest points still printable.