关键词: 柑橘, 糖度, 图像分析, 无损测量

Abstract:

Taking orange as example, this article does some research on image foreground segmentation algorithm and the relationship between brix and the images. Correlation analysis method based on coefficient of determination is introduced into image segmentation. And more accurate segmentation results of different images were obtained using this method. The research result shows that there is a close relationship between orange brix and its color image's external parameters and the variation tendency of the average G intensity according to the change of brix can be well simulated using double exponential equation. It also shows that in the case of no additional light source, it is possible to know orange brix nondestructively based only on its visible waveband color image.

Key words: orange, brix, image analysis, nondestructive measurement