数字成像系统在食品分析中的比色法

IF 2.2 4区 工程技术 Q3 CHEMISTRY, APPLIED
Mousumi Sabat, Pramod Shelake, Nachiket Kotwaliwale
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引用次数: 0

摘要

使用MATLAB接口开发了一种非破坏性,用户友好的便携式颜色测量系统,可以使用任何成像传感器给出可接受的结果。利用成像传感器采集的数字图像,获得RGB、XYZ和CIELAB三种格式的定量色彩信息。放大特征对于获得图像的详细颜色特征是有用的,而裁剪感兴趣的区域有助于减少图像矩阵,并最终减少所需的计算能力。产品颜色值的定量信息(包括平均值和区域到区域)可以以所有三种格式(即RGB, XYZ和CIELAB)获得。它也给出了三个最接近的皇家园艺学会(RHS)值的产品。测量系统的准确性首先根据标准色表进行验证,然后使用三个不同配置的图像传感器进行测试。性能评价时,L*的决定系数(R2)和均方根误差分别为0.983和3.391,a*的0.994和1.851,b*的0.996和2.042。同样,当使用不同的成像传感器进行颜色测定时,所有测试样品(即不同色度/色调的各种水果和蔬菜)的颜色值没有显着变化。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Colorimetry in food analysis using digital imaging system

A non-destructive, user-friendly, portable colour measurement system was developed using the MATLAB interface that gives acceptable results with any imaging sensor. Digital images captured by the imaging sensor were used to obtain quantitative colour information in three formats, namely, RGB, XYZ and CIELAB. The zoom-in feature is useful for obtaining detailed colour features of the image, while cropping of the region of interest aids in reducing the image matrix and, ultimately, the computational power required. Quantitative information on the colour value of the product (both average and region to region) can be obtained in all three formats (i.e., RGB, XYZ and CIELAB). It also gives the three closest Royal Horticultural Society (RHS) values of the product. The accuracy of the measurement system was first validated against a standard colour chart then it was tested using three image sensors of different configurations. Coefficient of determination (R2) and root mean square error values of 0.983 and 3.391 for L*, 0.994 and 1.851 for a* and 0.996 and 2.042 for b*, respectively, were obtained during performance evaluation. Similarly, when different imaging sensors were used for colour determination, the colour values showed no significant variation for all tested samples (i.e., various fruits and vegetables of different chroma/hues).

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来源期刊
Coloration Technology
Coloration Technology 工程技术-材料科学:纺织
CiteScore
3.60
自引率
11.10%
发文量
67
审稿时长
4 months
期刊介绍: The primary mission of Coloration Technology is to promote innovation and fundamental understanding in the science and technology of coloured materials by providing a medium for communication of peer-reviewed research papers of the highest quality. It is internationally recognised as a vehicle for the publication of theoretical and technological papers on the subjects allied to all aspects of coloration. Regular sections in the journal include reviews, original research and reports, feature articles, short communications and book reviews.
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