Benito Altamirano, IsmaelPfeiffer, PeterCusola, OriolPrades García, Juan Daniel2023-02-032023-02-032018-11-292504-3900https://hdl.handle.net/2445/193025We present a systematic methodology to generate machine-readable patterns embodying all the elements needed to carry out colorimetric measurements with conventional color cameras in an automated, robust and accurate manner. Our approach relies on the well-stablished machine-readable features of the QR Codes, to detect the pattern, identify the color reference elements and the colorimetric spots, to calibrate the color of the image and to conclude a quantitative measurement. We illustrate our approach with a NH3 colorimetric indicator operating at distinct color temperature ambient lights, demonstrating that with our design, consistent measurements can be achieved, with independence on the illumination conditions.5 p.application/pdfengcc-by (c) Benito Altamirano, Ismael et al., 2018https://creativecommons.org/licenses/by/4.0/ColorimetriaVisió per ordinadorColorimetryComputer visioninfo:eu-repo/semantics/article7289492023-02-03info:eu-repo/semantics/openAccess