The process of generation, printing and reading of the image abstract for authentication of documents and substrate printed with data fixed or variable incognito

摘要

The process of generation, printing and reading of the image abstract for authentication of documents and substrate printed with data fixed or variable incognito, proposes a printing process can insert a hidden image in any type of printed substrate, capable of being read manual The mind by means of a decoder called lens.Made by a process of printing or laser etching or through special automation for scanners and readers with built-in software in digital cameras or by the process of polarized light, so has a substrate (1), capable of receiving art, texts or Characters by means of conventional processes of printing, which is applied to an image (2).Through a conventional printer or special, and this image (2) is incorporated into the Si, an image mark (3) which is not visible to the naked eye.The image mark (3) has its pixels dispersed using art or characters of the image (2), i.e., the dispersion is carried out so as to take advantage of the shapes and colors of the image itself (2), allowing the total exemption of tracks or details capable of identifying the image mark (3) to the Her naked, preventing its reproduction by means of conventional copies.Thus, the image mark (3) is completely dispersed in the image (2), by means of the algorithm processed by specific software installed in a computer (s), and the dispersion is carried out in an orderly manner according to a determined frequency.To have access to the image mark (3) static or variable, to the exclusion of the bar code (names, dates, values etc.) it is necessary to use a lens decoder (4), which in turn must be made by printing or laser etching in the same frequ00fcu00ea Of the image mark (3) to be regrouped in an orderly and intelligible.Other types of safety devices, validation, authentication of originality can be used in conjunction with this device, without being affected.