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

用java使用了Sobel算子以及Laplace算子实现的图像边缘提取，时钟时间识别-With java using Sobel operator and the Laplace operator to achieve image edge detection, recognition time clock

该代码建立了一个窗口作为平台，在上面显示图像的一些基本处理，如二值化，卷积模糊，利用sobel算子提取边缘等等(The code builds a window as a platform on which some basic processing of the image is displayed, such as binarization, convolution blur, using the sobel operator to extract the edges, etc.)

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)