한국식품과학회지 (Korean Journal of Food Science and Technology)
- 제28권4호
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- Pages.786-789
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- 1996
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- 0367-6293(pISSN)
식품의 색채 분석을 위한 영상 처리 시스템
Image Processing System for Color Analysis of Food
- Kim, Kyung-Man (Department of Food Science and Technology, Seoul National University) ;
- Seo, Dong-Wook (Department of Food Science and Technology, Seoul National University) ;
- Chun, Jae-Kun (Department of Food Science and Technology, Seoul National University)
- 발행 : 1996.08.30
초록
식품 표면의 색변화를 화상화하고 3원색으로 분리하여 가공, 처리할 수 있는 영상 처리 시스템을 video camera와 영상 카드, 조명 장치, PC로 구성하였다. Video camera로부터 출력되는 analog 화상 신호를 영상카드에서 digital신호로 변환하고 이를 PC 모니터 상에서
An image processing system was built to evaluate the color properties of apple and meat. The system consisted of video camera, video card, 32 bit microcomputer and an optical illuminator. The operating software was developed to carry out capturing, analyzing, displaying and storing of the 8 bit digitized images of food. The images of apples at various maturing stages were investigated to obtain the color histogram of R, G, B and Hunter value. RGB histogram showed a major difference in G value, 35.01, the minor change in R value, 6.16, and the negligible difference in B value. The image of beef cut was separated into two parts, fat and lean tissue, by applying threshold value method based on the digital value of color. The threshold value for fat was over 240 and for lean under 230 in R value, respectively. The resulting non fat image showed 2% decreased color difference value,