Comparison of Minolta colorimeter and machine vision system in measuring colour of irradiated Atlantic salmon
Abstract BACKGROUND: Minolta and machine vision are two different instrumental techniques used for measuring the colour of muscle food products. Between these two techniques, machine vision has many advantages, such as its ability to determine L *, a *, b * values for each pixel of a sample's i...
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crwiley:10.1002/jsfa.3467 2024-09-15T17:55:57+00:00 Comparison of Minolta colorimeter and machine vision system in measuring colour of irradiated Atlantic salmon Yagiz, Yavuz Balaban, Murat O Kristinsson, Hordur G Welt, Bruce A Marshall, Maurice R 2009 http://dx.doi.org/10.1002/jsfa.3467 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjsfa.3467 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jsfa.3467 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of the Science of Food and Agriculture volume 89, issue 4, page 728-730 ISSN 0022-5142 1097-0010 journal-article 2009 crwiley https://doi.org/10.1002/jsfa.3467 2024-07-25T04:21:45Z Abstract BACKGROUND: Minolta and machine vision are two different instrumental techniques used for measuring the colour of muscle food products. Between these two techniques, machine vision has many advantages, such as its ability to determine L *, a *, b * values for each pixel of a sample's image and to analyse the entire surface of a food regardless of surface uniformity and colour variation. The objective of this study was to measure the colour of irradiated Atlantic salmon fillets using a hand‐held Minolta colorimeter and a machine vision system and to compare their performance. RESULTS: The L *, a *, b * values of Atlantic salmon fillets subjected to different electron beam doses (0, 1, 1.5, 2 and 3 kGy) were measured using a Minolta CR‐200 Chroma Meter and a machine vision system. For both Minolta and machine vision the L * value increased and the a * and b * values decreased with increasing irradiation dose. However, the machine vision system showed significantly higher readings for L *, a *, b * values than the Minolta colorimeter. Because of this difference, colours that were actually measured by the two instruments were illustrated for visual comparison. Minolta readings resulted in a purplish colour based on average L *, a *, b * values, while machine vision readings resulted in an orange colour, which was expected for Atlantic salmon fillets. CONCLUSION: The Minolta colorimeter and the machine vision system were very close in reading the standard red plate with known L *, a *, b * values. Hence some caution is recommended in reporting colour values measured by Minolta, even when the ‘reference’ tiles are measured correctly. The reason for this discrepancy in colour readings for salmon is not known and needs further investigation. Copyright © 2009 Society of Chemical Industry Article in Journal/Newspaper Atlantic salmon Wiley Online Library Journal of the Science of Food and Agriculture 89 4 728 730 |
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Wiley Online Library |
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English |
description |
Abstract BACKGROUND: Minolta and machine vision are two different instrumental techniques used for measuring the colour of muscle food products. Between these two techniques, machine vision has many advantages, such as its ability to determine L *, a *, b * values for each pixel of a sample's image and to analyse the entire surface of a food regardless of surface uniformity and colour variation. The objective of this study was to measure the colour of irradiated Atlantic salmon fillets using a hand‐held Minolta colorimeter and a machine vision system and to compare their performance. RESULTS: The L *, a *, b * values of Atlantic salmon fillets subjected to different electron beam doses (0, 1, 1.5, 2 and 3 kGy) were measured using a Minolta CR‐200 Chroma Meter and a machine vision system. For both Minolta and machine vision the L * value increased and the a * and b * values decreased with increasing irradiation dose. However, the machine vision system showed significantly higher readings for L *, a *, b * values than the Minolta colorimeter. Because of this difference, colours that were actually measured by the two instruments were illustrated for visual comparison. Minolta readings resulted in a purplish colour based on average L *, a *, b * values, while machine vision readings resulted in an orange colour, which was expected for Atlantic salmon fillets. CONCLUSION: The Minolta colorimeter and the machine vision system were very close in reading the standard red plate with known L *, a *, b * values. Hence some caution is recommended in reporting colour values measured by Minolta, even when the ‘reference’ tiles are measured correctly. The reason for this discrepancy in colour readings for salmon is not known and needs further investigation. Copyright © 2009 Society of Chemical Industry |
format |
Article in Journal/Newspaper |
author |
Yagiz, Yavuz Balaban, Murat O Kristinsson, Hordur G Welt, Bruce A Marshall, Maurice R |
spellingShingle |
Yagiz, Yavuz Balaban, Murat O Kristinsson, Hordur G Welt, Bruce A Marshall, Maurice R Comparison of Minolta colorimeter and machine vision system in measuring colour of irradiated Atlantic salmon |
author_facet |
Yagiz, Yavuz Balaban, Murat O Kristinsson, Hordur G Welt, Bruce A Marshall, Maurice R |
author_sort |
Yagiz, Yavuz |
title |
Comparison of Minolta colorimeter and machine vision system in measuring colour of irradiated Atlantic salmon |
title_short |
Comparison of Minolta colorimeter and machine vision system in measuring colour of irradiated Atlantic salmon |
title_full |
Comparison of Minolta colorimeter and machine vision system in measuring colour of irradiated Atlantic salmon |
title_fullStr |
Comparison of Minolta colorimeter and machine vision system in measuring colour of irradiated Atlantic salmon |
title_full_unstemmed |
Comparison of Minolta colorimeter and machine vision system in measuring colour of irradiated Atlantic salmon |
title_sort |
comparison of minolta colorimeter and machine vision system in measuring colour of irradiated atlantic salmon |
publisher |
Wiley |
publishDate |
2009 |
url |
http://dx.doi.org/10.1002/jsfa.3467 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjsfa.3467 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jsfa.3467 |
genre |
Atlantic salmon |
genre_facet |
Atlantic salmon |
op_source |
Journal of the Science of Food and Agriculture volume 89, issue 4, page 728-730 ISSN 0022-5142 1097-0010 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/jsfa.3467 |
container_title |
Journal of the Science of Food and Agriculture |
container_volume |
89 |
container_issue |
4 |
container_start_page |
728 |
op_container_end_page |
730 |
_version_ |
1810432177850023936 |