Implement method for embedding large amount of information on printing media

Abstract

The utility model relates a new implementation method for embedding large amount of information into the print media, belonging to the information processing field. The utility model provides a new composing method for marking screen coding with self-location function aiming to the information embedding method of print media. The novel marking screen coding adopts various geometry distribution comprising the lattice point displacement, the lattice point direction and the lattice point shape to record information directly, or various physics distribution comprising the phase modulation of two-dimensional spatial image and the propagation direction of lattice points to record information directly, and the segmentation method of the screen lattice points. The utility model has the advantagesof uniform gray level of the lattice points and small size of lattice points, and is beneficial for code identification, besides, the influence on the image quality after information embedding is small and the information capacity is large, in addition, the utility model can rotate arbitrarily within 360 degrees, and is suitable for the information embedding of all printing images.

Description

technical field [0001] The invention belongs to the field of information processing, in particular to a method for realizing a system capable of embedding a large amount of information on a printing medium. Background technique [0002] In recent years, computer technology has developed rapidly, and as a medium for recording data information, it has developed from the initial magnetic medium to optical medium, storage medium, etc. But plain paper as a medium for storing large amounts of data is rarely mentioned. [0003] In addition, as a simple method of supermarket settlement at first, a one-dimensional bar code was proposed by Harvard University in the United States in 1932, and it has been widely used until now. In the late 1980s, in order to meet the needs of industries such as gemstones, semiconductors, pharmaceuticals, and mechanical parts, Code49 was developed by Intermec in 1989, and two-dimensional barcodes were born. After that, DataMatrix, MaxiCode, ArrayTag, e...

AI Technical Summary

Problems solved by technology

[0012] The first purpose of the present invention is to embed a large amount of information on the printing media, and to solve the problem that the dot matrix number of screen dots should not be too large when printing equipment such as low-resolution printer all-in-one machines are embedding information in shading mode. big problem

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