L. Ciaccheri, B. Adinolfi, A. Mencaglia, A. Mignani
{"title":"The smartphone for colorimetry: performance characterization","authors":"L. Ciaccheri, B. Adinolfi, A. Mencaglia, A. Mignani","doi":"10.1117/12.2678411","DOIUrl":null,"url":null,"abstract":"A smartphone has been characterized as colorimeter, using both the built-in camera and a clip-on dispersive grating. Certified colorimetric samples provided by Labsphere® were considered as test samples. Color measurements directly performed by means of the smartphone camera only were obtained using the “RGB Detector” App, downloaded from the Google Play Store. More precise measurements were obtained by means of the commercially available GoSpectro grating and related App. In both cases, in order to quantify the reliability and sensitivity of smartphone-based color measurements, the CIELab color difference ΔE between the certified and smartphone-measured colors were calculated, and are reported in this paper. Also, as an example of practical application of interest for the textile industry, several samples of cloth fabrics with a palette of the most common colors were analyzed, and the comparison with the certified color values are presented.","PeriodicalId":424244,"journal":{"name":"European Workshop on Optical Fibre Sensors","volume":"19 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2023-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"European Workshop on Optical Fibre Sensors","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1117/12.2678411","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
A smartphone has been characterized as colorimeter, using both the built-in camera and a clip-on dispersive grating. Certified colorimetric samples provided by Labsphere® were considered as test samples. Color measurements directly performed by means of the smartphone camera only were obtained using the “RGB Detector” App, downloaded from the Google Play Store. More precise measurements were obtained by means of the commercially available GoSpectro grating and related App. In both cases, in order to quantify the reliability and sensitivity of smartphone-based color measurements, the CIELab color difference ΔE between the certified and smartphone-measured colors were calculated, and are reported in this paper. Also, as an example of practical application of interest for the textile industry, several samples of cloth fabrics with a palette of the most common colors were analyzed, and the comparison with the certified color values are presented.
智能手机被称为色度计，它使用内置摄像头和夹式色散光栅。Labsphere®提供的认证比色样品被视为测试样品。仅通过智能手机相机直接进行的颜色测量使用从Google Play Store下载的“RGB检测器”应用程序获得。通过市售的GoSpectro光栅和相关应用程序获得了更精确的测量结果。在这两种情况下，为了量化基于智能手机的颜色测量的可靠性和灵敏度，计算了认证和智能手机测量颜色之间的CIELab色差ΔE，并在本文中进行了报道。此外，作为纺织工业实际应用的一个例子，分析了几种具有最常见颜色调色板的布料样品，并与认证颜色值进行了比较。
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