OpenCV自带方法遍历目录下文件

来源：互联网发布：java数组不定义长度编辑：程序博客网时间：2024/06/04 18:29

以前一直用C语言遍历目录下图像文件来获取图像名称，才知道opencv自带的类Directory实现了这个功能。

Directory定义于contrib.hpp（v2.0以上），定义很简单就三个函数：

class CV_EXPORTS Directory{public:static std::vector<std::string> GetListFiles  ( const std::string& path, const std::string & exten = "*", bool addPath = true );static std::vector<std::string> GetListFilesR ( const std::string& path, const std::string & exten = "*", bool addPath = true );static std::vector<std::string> GetListFolders( const std::string& path, const std::string & exten = "*", bool addPath = true );};

使用起来也很简单：

// Use opencv built-in methods to get image filenames of specified folder.#include <iostream>using namespace std;#include <opencv2\opencv.hpp>#include <opencv2\highgui\highgui.hpp>#include <opencv2\contrib\contrib.hpp>using namespace cv;int main(int argc, char* argv[]){string dir_path = "D:\\opencv_pic\\test\\";Directory dir;vector<string> fileNames = dir.GetListFiles(dir_path, "*.jpg", false);for(int i = 0; i < fileNames.size(); i++){//get image namestring fileName = fileNames[i];string fileFullName = dir_path + fileName;cout<<"File name:"<<fileName<<endl;cout<<"Full path:"<<fileFullName<<endl;//load imageIplImage* srcImg = cvLoadImage(fileFullName.c_str(), -1);cvShowImage("src", srcImg);cvWaitKey(0);}return 0;}

结果：

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