Application of the Computer Vision System to the Measurement of the CIE L*a*b* Color Parameters of Fruits

摘要

The first thing the consumer uses without tasting the fruit is the sense of sight. Human vision can be replaced by a digital camera and under specific conditions we can measure the color parameters of fruits. The color determination of Tommy Atkins mango, papaya, star fruit and golden berry were performed using the standardized computer vision system. High coefficients of determination (R~2) were obtained, explained by the linear regression model, for parameter L* (0.9986), for parameter a* (0.9992) and for parameter b* (0.9991). The CIE L*a*b* parameters for Tommy Atkins mango (L*= 74%, a*= 78.3% red, b*= 55% yellow), papaya (L*= 74%, a*= 15% of green, b*= 43.3% of yellow), star fruit (L*= 59%, a*= 18.3% of red, b*= 61.7% of yellow) and golden berry (L*= 67%, a*= 16.7% of red, b*= 85% of yellow).