Comparative performance of tristimulus and color appearance models in low-cost smartphone digital colorimetry for soil CO 2 detection
Abstract
, surpassing both the spectrophotometric benchmark (0.0780 wt%) and the best tristimulus model, CIELAB-PLS (0.0463 wt%). This enhanced performance is attributed to the superior perceptual uniformity, hue linearity, and adaptive viewing condition compensation inherent to CAMs, which provide a more robust colorimetric signal for machine learning interpretation. This work establishes CAM-integrated digital colorimetry as a highly sensitive, low-cost, and laboratory-validated protocol that offers rapid analysis capabilities for environmental monitoring, CCS verification, and precision agriculture.
Fields of Study & Subjects
Biosensors and Analytical Detection
Remote Sensing in Agriculture
Indoor Air Quality and Microbial Exposure
Publication details
- Journal / source
- The Analyst
- Publisher
- Royal Society of Chemistry (RSC)
- Volume
- 151
- Issue
- 7
- Pages
- 2011–2023
- Publication date
- 1 January 2026
- Language
- EN