Printing dot code generation method and image printing technology using printing dot code generation method

Abstract

The invention discloses a printing dot code generation method and an image printing technology using the printing dot code generation method, and belongs to the field of printing. According to the printing dot code generation method, amplitude modulation screening and frequency modulation screening are used for generating dots, and both the amplitude modulation screening and the frequency modulation screening generate the dots with a laser dot as a unit. According to the image printing technology using the printing dot code generation method, when an original drawing has a pattern for the amplitude modulation screening, information which needs embedding is used for generating frequency modulation dots through the printing dot code generation method and is coded, so that the information which needs embedding is embedded into the digitalized original drawing; when the original drawing has a pattern for the frequency modulation screening, the information which needs embedding is used for generating amplitude modulation dots through the printing dot code generation method and is coded, so that the information which needs embedding is embedded into the digitalized original drawing. According to the printing dot code generation method and the image printing technology using the printing dot code generation method, special printing space is not needed, the amount of embedded information is large, the coding processes are simple, and the technology is easy to implement.

Description

technical field [0001] The invention relates to the field of printing, in particular to a method for generating printing dot codes and an image printing process using the method. Background technique [0002] With the continuous development of science and technology, people's requirements for printing anti-counterfeiting are getting higher and higher. [0003] In 1932, Harvard University in the United States proposed a one-dimensional barcode proposal, and it has been widely used so far. In order to meet the needs of recording more information, Code49 was developed by Intermec Corporation of the United States in 1989. From then on, the two-dimensional barcode was born and has been widely used. But it has many disadvantages, such as: the two-dimensional barcode takes up space and cannot be integrated with the printed content, and needs a special space for printing; it is easy to be copied and cannot be used as a means of information hiding; the embedded information is small ...

AI Technical Summary

Problems solved by technology

However, because the printing screen theory is not considered, it cannot solve the problem that the information embedded in the transformation from RGB color space to CMYK color space is destroyed, so the application is limited.

[0005] Since 2000, people have been keen on the application of RFID radio frequency chips, but due to its high cost, it is difficult to promote it on a large scale

This method can well solve the problems existing in the two-dimensional code, but the method of embedding information by changing the position, size, and shape of the dots is complicated to implement, and a special dot generation device is required to control the shape and size of the dots. , location and other information, the encoding process is complicated and the cost is high

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