自己写的java数字图像处理，实现几种简单的分割图像算法；sobel,prewitt等。-Write your own java digital image processing, image segmentation algorithm several simple sobel, prewitt and so on.

共创在线考试测试系统源码2.1.0版利用HOUGH变换提取边界特征,还有SOBEL算子的算法 -Create online exam testing system version 2.1.0 source code using HOUGH transform boundary feature extraction, as well as Sobel Operator Algorithm

简单的图像的梯度值计算函数，java语言，利用的是sobel算子(Simple image gradient value calculation function, Java language, using the Sobel operator)