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A color two-dimensional code encoding and decoding method capable of carrying multiple black and white two-dimensional codes

A technology of color two-dimensional codes and encoding and decoding methods, which is applied in the direction of record carriers used by machines, electromagnetic radiation induction, instruments, etc., and can solve the problems of incompatibility of black and white two-dimensional code encoding and decoding.

Active Publication Date: 2017-09-19
ZHEJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY
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Problems solved by technology

On the whole, the current coding and decoding methods of color two-dimensional codes are all based on multi-ary coding to increase the information capacity. This coding method is not compatible with the coding and decoding of black and white two-dimensional codes.

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  • A color two-dimensional code encoding and decoding method capable of carrying multiple black and white two-dimensional codes
  • A color two-dimensional code encoding and decoding method capable of carrying multiple black and white two-dimensional codes
  • A color two-dimensional code encoding and decoding method capable of carrying multiple black and white two-dimensional codes

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Embodiment Construction

[0043] The specific implementation of the present invention will be described in detail below in conjunction with the drawings, but it is not intended to limit the protection scope of the present invention. The specific implementation of the present invention includes two parts of color coding and decoding, and the implementation process will be described in detail below in conjunction with an example.

[0044] The color coding implementation process consists of the following steps:

[0045] Step 1: Select the information flow to be encoded. In this embodiment, the input information flow is two network link addresses: http: / / cli.im / 6pOaA and http: / / cli.im / TM3bL. Then input these two URLs into a general-purpose QR code encoder to generate two ordinary black and white two-dimensional codes, such as figure 1 and figure 2 shown.

[0046] Step 2: Select several colors with relatively large distance between RGB vectors as coding candidate colors, and give each color a number suc...

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Abstract

The invention discloses a method for encoding and decoding a colored two-dimensional code capable of bearing multiple black and white two-dimensional codes. The method comprises the following steps: firstly, according to an RGB trichromatic theory, selecting multiple colors with large average color difference values as preselected coding colors of the colored two-dimensional code, and sequencing the multiple colors to correspond each color to a serial number. The invention provides a large-capacity color encoding and decoding method which is compatible with black and white two-dimensional code information encoding and decoding standard; by the method, a plug-in can be manufactured to update general black and white two-dimensional code so as to improve the capability of two-dimensional information.

Description

technical field [0001] The invention belongs to the technical field of two-dimensional codes, and relates to a color two-dimensional code encoding / decoding method capable of carrying multiple black and white two-dimensional codes, in particular to a method for multiplexing and demultiplexing multiple black and white two-dimensional codes Color coding method. technical background [0002] Bar code technology is a comprehensive technology that integrates coding, printing, identification, data collection and processing. It has the advantages of large information capacity, high reliability, various forms of data can be expressed, and strong security and anti-counterfeiting. Foreign research on two-dimensional code technology began in the late 1980s. A variety of code systems have been developed in the research of two-dimensional code symbol representation technology, common ones are PDF417, QRCode, Data Matrix, etc., and the International Organization for Standardization has f...

Claims

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Application Information

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IPC IPC(8): G06K7/10G06K19/06
Inventor 潘卫清
Owner ZHEJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY
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