继续前行

Posted 2020-08-07

①之前修改SIFT内部函数时发现如下的size_t

size_t是无符号的，并且是平台无关的，表示0-MAXINT的范围，具体参考

 ② 关于resize中area和InputArray的使用

详见：

http://monkeycoding.com/?tag=point2f

http://blog.csdn.net/yang_xian521/article/details/7755101  觉得里面的仿射变换程序错啦  没有计算y坐标啊

③openmp的功能就那么少？

http://www.cnblogs.com/yangyangcv/archive/2012/03/23/2413335.html

暂时就那么些吧

④特征点的读写

http://blog.csdn.net/wd1603926823/article/details/48969039  实现了特征点的坐标与描述符矩阵的写

 //This will store your keypoints in a file named keypoints.yml and the node containing the data is named "aNameYouLike". 
vector<Keypoint> mykpts;
 FileStorage fs("keypoints.yml", FileStorage::WRITE);
 write( fs , "aNameYouLike", mykpts );
 fs.release();
//This will be used to read back the keypoints from the file
 vector<Keypoint> mykpts2;
  FileStorage fs2("keypoints.yml", FileStorage::READ);
  FileNode kptFileNode = fs2["aNameYouLike"];
  read( kptFileNode, mykpts2 );
  fs2.release();

参考   或看opencv读写xml、yml的规范

⑤qt入门

http://www.qter.org/?page_id=161