Comparative Analysis of Low-Cost Portable Spectrophotometers for Colorimetric Accuracy on the RAL Design System Plus Color Calibration Target.

Jaša Samec, Eva Štruc, Inese Berzina, Peter Naglič, Blaž Cugmas

Abstract read

In one paragraph

Article in Sensors (Basel, Switzerland), 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

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0cells of the map it votes in

1citing papers in PubMed

–field-weighted citation impact

1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

Surface functionalization strategies for polydiacetylene-based colorimetric sensors.Communications chemistry · 2026
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4 · The record

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PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Jaša SamecVets4science d.o.o., 2 Kukovčeva Str., SI-3000 Celje, Slovenia.

Eva ŠtrucVetamplify SIA, 57/59-32 Krišjāņa Valdemāra Str., LV-1010 Riga, Latvia.

Inese BerzinaVetCyto SIA, 13 Ozolu Str., LV-2008 Jurmala, Latvia.ORCID 0000-0002-9096-3542

Peter NagličFaculty of Electrical Engineering, University of Ljubljana, 25 Tržaška Str., SI-1000 Ljubljana, Slovenia.

Blaž CugmasVetamplify SIA, 57/59-32 Krišjāņa Valdemāra Str., LV-1010 Riga, Latvia.ORCID 0000-0002-3615-7443

Funding

Latvian Council of Science lzp-2023/1-0220Public Scholarship, Development, Disability and Maintenance Fund of the Republic of Slovenia 11013Recovery and Resilience Facility 5.1.1.2.i.0/1/22/A/CFLA/002, 1.12

6 · The paper itself

Abstract

Novel low-cost portable spectrophotometers could be an alternative to traditional spectrophotometers and calibrated RGB cameras by offering lower prices and convenient measurements but retaining high colorimetric accuracy. This study evaluated the colorimetric accuracy of low-cost, portable spectrophotometers on the established color calibration target-RAL Design System Plus (RAL+). Four spectrophotometers with a listed price between USD 100-1200 (Nix Spectro 2, Spectro 1 Pro, ColorReader, and Pico) and a smartphone RGB camera were tested on a representative subset of 183 RAL+ colors. Key performance metrics included the devices' ability to match and measure RAL+ colors in the CIELAB color space using the color difference CIEDE2000

Indexed as

CIEDE2000 color differencecolor calibration targetcolor constancycolorimetric accuracylow-cost colorimetryportable spectrophotometersRAL Design System Plus

Identifiers

PMID39771942

DOI10.3390/s24248208

PMCPMC11679304

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LicenceCC BY

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.