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Article

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Published version

Publication date

2023-01

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cc-by-nc-nd (c) Benito Altamirano, Ismael et al., 2023
Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/195932

Back-compatible Color QR Codes for colorimetric applications

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https://doi.org/10.1016/j.patcog.2022.108981

Abstract

Color correction techniques in digital photography often rely on the use of color correction charts, which require including this relatively large object in the field of view. We propose here to use QR Codes to pack these color charts in a compact form factor, in a fully compatible manner with conventional black and white QR Codes; this is, without losing any of their easy location, sampling and digital data storage features. First, we present an algorithm to build these new colored QR Codes that preserves the original QR Code functionality - much more than other coloring proposals based on the random substitution of black and white pixels by colors - that relies on the ability of the native CRC code to correct and counteract these alterations. Second, we demonstrate that, as a result, these QR Codes can allocate far many more colors than the conventional color correction charts, enabling much more accurate color correction schemes in a more convenient and usable format.

Subject

Visió per ordinador, Reconeixement de formes (Informàtica), Colorimetria

Subject (English)

Computer vision, Pattern recognition systems, Colorimetry

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Articles publicats en revistes (Enginyeria Electrònica i Biomèdica)

Citation

BENITO ALTAMIRANO, Ismael, et al. Back-compatible Color QR Codes for colorimetric applications. Pattern Recognition. 2023. Vol. 133, num. 1-14. ISSN 0031-3203. [consulted: 13 of August of 2026]. Available at: https://hdl.handle.net/2445/195932

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