OpenCV 3.1之前的版本，在contrib目錄下有提供遍歷文件的函數，用起來比較方便。但是在最新的OpenCV 3.1版本給去除掉了。為了以后使用方便，這里將OpenCV 2.4.9中相關的函數給提取了出來，適合在Windows 64bits上使用。

directory.hpp:

#ifndef FBC_CV_DIRECTORY_HPP_
#define FBC_CV_DIRECTORY_HPP_// reference: include/opencv2/contrib/contrib.hpp (2.4.9)#ifndef __cplusplus#error directory.hpp header must be compiled as C++
#endif#include <vector>
#include "core/fbcdef.hpp"namespace fbc {class FBC_EXPORTS Directory {
public:std::vector<std::string> GetListFiles(const std::string& path, const std::string & exten = "*", bool addPath = true);std::vector<std::string> GetListFilesR(const std::string& path, const std::string & exten = "*", bool addPath = true);std::vector<std::string> GetListFolders(const std::string& path, const std::string & exten = "*", bool addPath = true);
};}#endif // FBC_CV_DIRECTORY_HPP_

directory.cpp:

#include <windows.h>
#include "directory.hpp"// reference: contrib/src/inputoutput.cpp (2.4.9)namespace fbc{std::vector<std::string> Directory::GetListFiles(const std::string& path, const std::string & exten, bool addPath){std::vector<std::string> list;list.clear();std::string path_f = path + "/" + exten;WIN32_FIND_DATAA FindFileData;HANDLE hFind;hFind = FindFirstFileA((LPCSTR)path_f.c_str(), &FindFileData);if (hFind == INVALID_HANDLE_VALUE) {return list;} else {do {if (FindFileData.dwFileAttributes == FILE_ATTRIBUTE_NORMAL ||FindFileData.dwFileAttributes == FILE_ATTRIBUTE_ARCHIVE ||FindFileData.dwFileAttributes == FILE_ATTRIBUTE_HIDDEN ||FindFileData.dwFileAttributes == FILE_ATTRIBUTE_SYSTEM ||FindFileData.dwFileAttributes == FILE_ATTRIBUTE_READONLY) {char* fname;fname = FindFileData.cFileName;if (addPath) {list.push_back(path + "/" + std::string(fname));} else {list.push_back(std::string(fname));}}} while (FindNextFileA(hFind, &FindFileData));FindClose(hFind);}return list;}std::vector<std::string> Directory::GetListFilesR(const std::string& path, const std::string & exten, bool addPath){std::vector<std::string> list = Directory::GetListFiles(path, exten, addPath);std::vector<std::string> dirs = Directory::GetListFolders(path, exten, addPath);std::vector<std::string>::const_iterator it;for (it = dirs.begin(); it != dirs.end(); ++it) {std::vector<std::string> cl = Directory::GetListFiles(*it, exten, addPath);list.insert(list.end(), cl.begin(), cl.end());}return list;}std::vector<std::string> Directory::GetListFolders(const std::string& path, const std::string & exten, bool addPath){std::vector<std::string> list;std::string path_f = path + "/" + exten;list.clear();WIN32_FIND_DATAA FindFileData;HANDLE hFind;hFind = FindFirstFileA((LPCSTR)path_f.c_str(), &FindFileData);if (hFind == INVALID_HANDLE_VALUE) {return list;} else {do {if (FindFileData.dwFileAttributes == FILE_ATTRIBUTE_DIRECTORY &&strcmp(FindFileData.cFileName, ".") != 0 &&strcmp(FindFileData.cFileName, "..") != 0) {char* fname;fname = FindFileData.cFileName;if (addPath) {list.push_back(path + "/" + std::string(fname));} else {list.push_back(std::string(fname));}}} while (FindNextFileA(hFind, &FindFileData));FindClose(hFind);}return list;}
}

測試代碼：test_directory.cpp:

#include <string>
#include <vector>
#include <iostream>
#include "directory.hpp"
#include "test_directory.hpp"int test_directory_GetListFiles()
{fbc::Directory dir;std::string path = "E:/GitCode/OpenCV_Test/test_images";std::string exten = "*.jpg"; //"*";bool addPath = false; //true;// 遍歷指定文件夾下的所有文件，不包括指定文件夾內的文件夾std::vector<std::string> filenames = dir.GetListFiles(path, exten, addPath);std::cout << "file names: " << std::endl;for (int i = 0; i < filenames.size(); i++)std::cout <<"    "<< filenames[i] << std::endl;return 0;
}int test_directory_GetListFilesR()
{fbc::Directory dir;std::string path = "E:/GitCode/OpenCV_Test/test_images";std::string exten = "*";bool addPath = true; //false// 遍歷指定文件夾下的所有文件，包括指定文件夾內的文件夾std::vector<std::string> allfilenames = dir.GetListFilesR(path, exten, addPath);std::cout << "all file names: " << std::endl;for (int i = 0; i < allfilenames.size(); i++)std::cout <<"    "<< allfilenames[i] << std::endl;return 0;
}int test_directory_GetListFolders()
{fbc::Directory dir;std::string path = "E:/GitCode/OpenCV_Test/test_images";std::string exten = "*d*"; //"*"bool addPath = false; //true// 遍歷指定文件夾下的所有文件夾，不包括指定文件夾下的文件std::vector<std::string> foldernames = dir.GetListFolders(path, exten, addPath);std::cout << "folder names: " << std::endl;for (int i = 0; i < foldernames.size(); i++)std::cout << "    "<< foldernames[i] << std::endl;return 0;
}

GitHub： https://github.com/fengbingchun/OpenCV_Test