8Mahendran R, Jayashree GC, Alagusundaram K. Application of Computer Vision Technique on Sorting and Grading of Fruits and Vegetables [ J ]. Journal of Food Process Technol- ogy, 2012($5) :1-7.
9Mehrdad fojlaley, parviz ahmadi moghadam, saeed amani nia. Tomato Classification and Sorting with machine vision using SVM, MLP, and LVQ [ J ]. International Journal of Agriculture and Crop Sciences,2012,4 (15) :1083-1088.
10Paul H. Heinemann, Niranjan P. Pathare. An automated in- spection station for machine-vision grading of potatoes[ J]. Machine Vision and Applications, 1996 (9) : 14-19.