Digital hanging method and system based on high-fidelity Tibetan map screen

Abstract

The invention provides a digital screen hanging method and system based on a high-fidelity hidden picture screen, and relates to the technical field of anti-counterfeiting printing. This method includes first color separation and the generation of high-fidelity screens with base images for each single color. In this process, the printing image distortion prediction system is used to quantitatively and accurately predict image defects, and the image compensation optimization system is used to perform precise alignment compensation. The high-fidelity screen containing the base image is used to screen the corresponding single-color table images to obtain high-fidelity printed matter with the base image; the system includes a color separation module, a high-fidelity screen generation module, a screen module and plate making Printing module. The digital screen hanging method and system based on the high-fidelity hidden picture screen provided by the present invention can hide multi-layer high-definition and multi-level grayscale base pictures while ensuring the high fidelity of table pictures, and can effectively improve the quality of table pictures and base pictures. , suitable for various dot modulation methods and their combinations, especially suitable for situations where the base map remains unchanged and the table map changes or is replaced in large quantities.

Description

Technical field: [0001] The invention relates to the technical field of anti-counterfeiting printing, in particular to a method and system for digital hanging of digital nets based on high-fidelity picture collection screens. Background technique: [0002] The technique of hiding other images or information within printed diagrams has a long history. With the digital development of printing, more and more technical methods for hiding images or information have been developed and applied, the most widely used in the field of anti-counterfeiting. [0003] The actual displayed image that the observer can see is called the surface image; the image that is hidden under the surface image through a specific technology, cannot be distinguished by the naked eye, and can only be seen through corresponding detection means is called the base image; the base image The process hidden under the table map is called the hidden map. [0004] Most conventional printing systems do not have th...

AI Technical Summary

Problems solved by technology

The second type of defect cannot be directly judged in the halftone image. It is caused by the interaction between the distortion of the printing system and the disturbance of the dot structure. Different printing systems have different results.

This network reconstruction method is very inconvenient for some application scenarios where the base map remains unchanged and the table map changes or replaces a large number of

Images