matlab图像处理工具箱自带的针对大米图片进行背景均衡、对比度增强、二值化、连通区域获取、面积计算的实现过程，基于matlab的函数实现。-Matlab Image Processing Toolbox comes with rice picture background equalization, contrast enhancement, binarization, connected region to obtain the area of ​ ​ the implementation process, based on the matlab function.