Evaluation of “Monthong” durian maturity using color value from image analysis
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บทคัดย่อ
The objective of this reseach was to find the relation between peel color and maturity of “Monthong” durian. The image analysis teachnique was used to calculate the color values at spine tip. Then the color values were used to make relation with the 2 types of harvesting index i.e dry matter and day after bloom. The discriminant analysis was used to discrimination the durian into 2 groups i.e immature (the durians are not suitable for harvest) and mature (the durians are suitable for harvest and ripening stage can be ocure). The results of this study indicate that the caculated color values from the image have relation with the both index. The equations for predict the dry matter and day after bloom have coefficient of determination (R2) 0.769 and 0.906 respectively. For discrimimation of durian, the result show that the dry matter index gives the correct classifiacation of 85.1%, while the day after bloom index give the correct classification of 89.4%.
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สมาคมวิศวกรรมเกษตรแห่งประเทศไทย
Thai Socities of Agricultural Engineering
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