Rancang Bangun Computer Vision System (CVS) Sebagai Instrumen Pengukuran Warna Buah-Buahan


Ferlando Jubelito Simanungkalit(1*), Rosnawyta Simanjuntak(2)

(1) Program Studi Teknologi Hasil Pertanian, Fakultas Pertanian, Universitas HKBP Nommensen Medan, Jl. Sutomo No. 4A Medan, Sumatera Utara
(2) Program Studi Teknologi Hasil Pertanian, Fakultas Pertanian, Universitas HKBP Nommensen Medan, Jl. Sutomo No. 4A Medan, Sumatera Utara
(*) Corresponding Author


Color had a correlation with physical appearance, nutritional and chemical content as well as sensory properties which determine the quality of agricultural products and foods. Conventional color measurements were performed destructively using laboratory equipment. Therefore, color measurement methods of agricultural products were needed more quickly, accurately and non-destructively. This study aimed to develop a Computer Vision System (CVS) that can be used as a tool to measure the color of fruits. The designed CVS consists of a 60x60x60 cm black mini photo studio; a pair 15 watt LED lighting, sony α6000 digital camera, a set of laptop and an image processing software applications. Image processing software was programmed using VB.Net 2008 programming language. The developed CVS was calibrated using 24 color charts Macbeth Colorchecker (Gretag-Macbeth, USA). The calibration results of 24 color chart of Macbeth Colorchecker was resulted in a MAPE (Mean Absolute Percentage Error) value of component R / Red = 0%; G / Green = 0% and B / Blue = 0,5%; with 99% accuracy rate. In color measurement, the developed CVS had a 95% accuracy rate.


Color measurement; computer vision system; CVS; image processing

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DOI: https://doi.org/10.22146/agritech.29119

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