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Processing method for embedding information on paper medium file

A technology of paper media and documents, applied in the field of information processing, can solve problems such as technical difficulties of two-dimensional barcodes, achieve the effects of reducing trouble, preventing forgery and information tampering, and facilitating management and preservation

Active Publication Date: 2009-08-12
天津市阿波罗信息技术有限公司
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

It is obviously difficult to realize such a requirement with two-dimensional barcode technology.

Method used

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  • Processing method for embedding information on paper medium file
  • Processing method for embedding information on paper medium file
  • Processing method for embedding information on paper medium file

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0040] Combine below figure 1 Describe in detail the process of embedding a large amount of information on paper media files:

[0041] The processing method for embedding information on a paper medium file, the steps of the embedding method are as follows:

[0042] (1) Read the paper medium file data to be embedded with information, and convert it into image data;

[0043] (2) Read the additional information to be embedded in the image of the paper medium file from the memory, the external device, or at least one device in the network, group the additional information, and perform RS coding or correction on each group of data after grouping Error processing; perform 8-bit to 9-bit conversion for each set of encrypted data, and break up the "1" in the code to avoid horizontal continuous black spots or blanks during the embedding process that will affect the quality of the embedded image;

[0044](3) After conversion, follow the order of the first group 1 digit + the second gr...

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PUM

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Abstract

The invention provides a method of processing embedded information in paper medium file, comprising the steps of: reading the to-be-embedded information, RS coding the information, converting the paper medium file into image data, configuring the halftone screen coding, arranged into two-dimensional distribution at certain interval, at the interval of a print image, forming shading of the print image, composing the print image of the embedded information; printing and outputting the print image of the embedded information, or outputting the printing plate-making data for plate-making, and printing the print image of the embedded information. The method can directly embed much information on the paper medium file and can be used in the fields of automatically reading the paper medium file, and anti-fake of certificates, production and management of classified documents.

Description

technical field [0001] The invention belongs to information processing technology, in particular to a realization method of embedding information on a paper medium file. Background technique [0002] In recent years, computer technology has developed rapidly. As a medium for recording data information, it has developed from the initial magnetic medium to optical medium and memory medium. 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 products to record more information, Code49 was developed by Intermec in 1989, and the two-dimensional barcode was born. Since then, DataMatrix, MaxiCode, ArrayTag, etc. have app...

Claims

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Application Information

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IPC IPC(8): B42D15/00G06K19/06G06K9/00
Inventor 顾泽苍张铮
Owner 天津市阿波罗信息技术有限公司
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