Experiment demonstrates improved precision of soil color assessment using smartphones, indicating color correction may enhance citizen science efforts.
Key Points
Calibration consistently reduced errors in color measurements across all smartphones and lighting conditions, enhancing reliability.
Smartphone-derived soil color measurements were found to vary significantly under different lighting, affecting the accuracy of results.
This analysis tested color plate squares, Munsell color chips, and soil samples to evaluate effective correction methods for soil color measurements.
Findings call for simpler color correction methods to improve soil assessments in citizen science initiatives.