xml文档读写，基于opencv1.0，主要用于程序参数的读写。-the xml document reading and writing, based on opencv1.0, mainly used for reading and writing of program parameters.

斯坦福大学的手写字符图像库，方便大家免于读写idx1-ubyte和idx3-ubyte文件。数据包括训练图像60000幅，测试图像10000幅，图像大小为20*20；以及存储图像及其对应类别的xml文件，并写好了opencv读写方法的文档。-THE MNIST DATABASE of handwritten digits.It includes 60000 training images and 10000 testing image.And it contains the xml files

将不符合opencv打开的文档转换为符合opencv打开的XML文档。可以进行批量处理。

本程序用于XML文档的编写和读取,程序代码详细，调试正确-This procedure for the preparation of XML documents and read, the program code in detail, debugging is correct