Codec of color Chinese sensible code and method

Abstract

The invention discloses a codec of color Chinese sensible codes and a method. In the RGB color mode, the quinary number symbols respectively map five extreme value colors for encoding of the information area module, and three decimal number symbols different from the quinary number symbols are additionally selected to respectively map the other three extreme value colors to serve as indicators ofcode value digits to participate in encoding and be used for encoding of the functional graphic area module. According to the digit difference of the character code values, the character code values are divided into four length intervals as coding modes. According to the scheme, the digit of the character code value is shortened. In addition, the types of coding mode indicators and the digits of the indicators are reduced, the bit stream length of coding is further shortened, the compression ratio of information coding and the information capacity of unit area are greatly improved, and the generated color Chinese sensible code symbols are high in information compression ratio, large in information capacity of unit area, harmonious in color and beneficial to equipment identification and reading.

Description

technical field [0001] The invention belongs to the technical field of two-dimensional barcodes, and relates to a coding and decoding method and algorithm design of a color Chinese Sensible code on the basis of the structural principle of black and white Chinese Sensible codes, and specifically relates to a color Chinese Sensible code based on the principle of quinary system. Signal code codec and method. Background technique [0002] Color code Chinese Sensible code is a new barcode technology developed on the basis of black and white Chinese Sensible code. Due to the intervention of color characteristics, compared with black and white Chinese Sensible codes, color coded Chinese Sensible codes can store more information per unit area and show superiority in visual effects, graphic plasticity and information security, and have begun to be recognized by people. attention and favor. With the advent of the Internet 6G era, it is believed that this technology can be widely use...

AI Technical Summary

Problems solved by technology

It mainly has three defects: first, when encoding double-byte or four-byte Chinese characters, the number of bits in the binary code value will occupy a large amount of storage space; It also takes up a considerable amount of storage space, especially when encoding numbers, letters and Chinese characters mixed with each other, too many mode indicators will lead to a sharp drop in the compression ratio of effective information; the third is that the realized barcode color is 2 k color (k=1, 2, 3, ...)], the color is less than 4 colors, visually not harmonious enough, and the color is more than 8 colors, which is not conducive to the detection and identification of barcodes by prior art equipment

So what kind of encoding scheme for base numbers is more reasonable? It is still in the stage of technical discussion and has not yet formed a technical standard.

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