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IDL开发的区域增长代码，能实实现图像区域边界提取的区域增长处理 -IDL development of regional growth code can be implemented to achieve the regional growth area of ​ ​ the image boundary extraction processing

对二值图像进行边界提取，生成8方向的的边界链码，能求出各个链码元素出现的频率 -The binary image boundary extraction, boundary chain code, generate eight direction to calculate the frequency of each chain code elements