Smartphone Digital Image Colorimetry: An Affordable Easy-To-Use Technique

Analytical instruments used for scientific research are often expensive. This limitation poses a challenge for researchers in low-income laboratories. To address this problem, the improvization of analytical instruments has emerged as a viable solution. Herein, we review and discuss, step-by-step, the approach of using a smartphone for colorimetric analysis, known as smartphone digital image colorimetry (SDIC). With its practicality and accessibility, SDIC utilizes smartphone digital cameras for image acquisition and free image processing programs, and smartphone Apps, for analysis. By leveraging the ubiquity and affordability of smartphone technology, SDIC offers an accessible and cost-effective approach to researchers in resource-constrained settings.