Improving the Capacity of QR Code by Using Color Technique

Pillai, Prathibha N.; Naresh, Kumar

doi:10.15662/ijareeie.2014.0307025

Cited by 4 publications

(4 citation statements)

References 8 publications

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“…In addition, expanding the data capacity of QR codes by increasing colors [9], [10] is also the mainstream of current research. The added colors to QR codes are prone to cause color distortion [11], color confusion [12] and other problems, which bring great challenges to the decoding. Color-coding [13] and multiplexing [14] are pervasively used technical approaches to study color QR codes.…”

Section: Introductionmentioning

confidence: 99%

A Directly Readable Halftone Multifunctional Color QR Code

2023

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Color quick response (QR) code is an important direction for the future development of QR code, which has become a research hotspot due to the additional functional characteristics of its colors as the wide application of QR code technology. The existing color QR code has solved the problem of information storage capacity, but it requires an enormous hardware and software support system, making how to achieve its direct readability an urgent issue. This paper proposes a novel color QR code that combines multiple types of different identification information. This code combines multiplexing and color-coding technology to present the publicly encoded information (such as advertisements, public query information) as plain code, and traceability, blockchain, anticounterfeiting authentication and other information concealed in the form of hidden code. We elaborate the basic principle of this code, construct its mathematical model and supply a set of algorithm design processes, which breakthrough key technology of halftone printout. The experimental results show that the proposed color quick response code realizes the multi-code integration and can be read directly without special scanning equipment, which has unique advantages in the field of printing anticounterfeiting labels.

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Section: Introductionmentioning

confidence: 99%

A Directly Readable Halftone Multifunctional Color QR Code

2023

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“…Pillai, et al. [6, 7] increased the data capacity of QR code and ensuring its robustness based on colour coding technology. Galiyawala, et al.…”

Section: Introductionmentioning

confidence: 99%

“…Nutchanad Taveerad et al [5] realized the raise of data density by encoding and decoding information with custom colours. Pillai, et al [6,7] increased the data capacity of QR code and ensuring its robustness based on colour coding technology. Galiyawala, et al [8,9] applied multiplexing technology [10] to compound multiple QR codes into a colour QR code, whose capacity is 24 times that of black-and-white QR code of the same size.…”

mentioning

confidence: 99%

Research on multiplexed colour QR code with direct readability

Huang

Cao

2022

Electronics Letters

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With the rapid popularization of QR code technology, colour QR code is an important direction of its development, making it of great value to research a colour QR code that can be read directly while improving the data capacity. This letter proposes a novel composite colour QR code by combining colour coding and multiplexing technology. Based on the actual demands of high-capacity, this code presents the public identification information in the form of the plain code and conceals the secret information (e.g., authentication information such as traceability, blockchain) as the hidden code. The reading conditions of colour QR codes are discussed, a colour coding model is established and the corresponding algorithm to optimize its design is given. Through code scanning tests, it is verified that this kind of code has significant value in the field of anti-counterfeiting, commodity marketing etc.

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“…Many techniques have been proposed on how to encode and decode a QR Code that can store the larger size of data and this includes multilayers [16,17] multiplexing [18], compression [19] and base64 encoding/decoding [20]. This study proposes a technique that improves the data capacity of a QR Code by merging for the mentioned techniques and tested in QR Code version 40.…”

Section: Introductionmentioning

confidence: 99%

Increasing data storage of coloured QR code using compress, multiplexing and multilayered technique

Abas¹,

Yusof²,

Din³

et al. 2020

Bulletin EEI

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Quick response (QR) code is a printed code of black and white squares that is able to store data without the use of any of the electronic devices. There are many existing researches on coloured QR code to increase the storage capacity but from time to time the storage capacity still need to be improved. This paper proposes the use ofcompress, multiplexing and multilayered techniques, as an integrated technique known as CoMM, to increase the storage of the existing QR code. The American Standard Code for Information Interchange (ASCII) text characters are used as an input and performance is measured by the number of characters that can be stored in a single black and white QR code version 40. The experiment metrics also include percentage of missing characters, number of produced QR code, and elapsed time to create the QR code. Simulation results indicate that the proposed algorithm stores 24 times more characters than the black and white QR code and 9 times more than other coloured QR code. Hence, this shows that the coloured QR code has the potential of becoming useful mini-data storage as it does not rely on internet connection.

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Improving the Capacity of QR Code by Using Color Technique

Cited by 4 publications

References 8 publications

A Directly Readable Halftone Multifunctional Color QR Code

A Directly Readable Halftone Multifunctional Color QR Code

Research on multiplexed colour QR code with direct readability

Increasing data storage of coloured QR code using compress, multiplexing and multilayered technique

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