注释文件格式的转换，labelme手工注释生成的注释文件与pascal数据集给出的注释文件格式相同，但是文件内部结构存在差异，labelme生成的注释文件无法直接给pascal使用，自己写的一个格式转换文件，可以将labelme和pascal的注释文件互相转换，以便使用pascal自带的注释文件读取函数。-Annotation file format conversion, document annotation file comments labelme manual annotation data sets generated with pascal given the same format, but there are differences in the internal structure of the file, comment file generated labelme not give pascal direct, write a file format conversion can be labelme comments and pascal file conversion with each other, in order to use the built-in annotation pascal file read function.