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Updated: Jun 22, 2026

Smartphone Fundus Photography

Smartphone Fundus Photography

Published on: July 6, 2017

Smartphone-Enabled Colorimetry.

Leonardo Ciaccheri¹, Barbara Adinolfi¹, Andrea Azelio Mencaglia¹

¹CNR-Istituto di Fisica Applicata "Nello Carrara", 50019 Sesto Fiorentino, FI, Italy.

Sensors (Basel, Switzerland)

|July 8, 2023

Summary

This study evaluates smartphones as colorimeters. Using a clip-on grating and a smartphone app, precise color measurements were achieved, demonstrating potential for applications like textile color analysis.

Keywords:

colorimetry smartphone spectroscopy

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Area of Science:

Optics and Photonics
Color Science
Mobile Technology Applications

Background:

Traditional colorimeters can be expensive and less portable.
The increasing sophistication of smartphone cameras presents opportunities for novel sensing applications.

Purpose of the Study:

To characterize the performance of smartphones as colorimeters.
To assess the accuracy and reliability of smartphone-based color measurements for various applications.

Main Methods:

Utilized smartphone cameras (built-in and with a clip-on dispersive grating) for color measurement.
Employed certified colorimetric samples from Labsphere® for calibration and testing.
Calculated CIELab color difference (ΔE) to quantify measurement accuracy.
Applied the RGB Detector app and the GoSpectro app for data acquisition.

Main Results:

Smartphone colorimetry, especially with a dispersive grating, showed promising accuracy.
CIELab color difference (ΔE) values were calculated to quantify measurement reliability.
Demonstrated practical application by measuring textile fabric colors and comparing them to certified values.

Conclusions:

Smartphones can function as effective colorimeters, offering a cost-efficient and portable solution.
The GoSpectro app with a clip-on grating provides more precise color measurements compared to using the camera alone.
Smartphone colorimetry holds potential for quality control and analysis in industries like textiles.