比如Linux服务器的
主机IP是192.108.100
账号:root
密码:123456
图片所在文件夹/data/face
我在windows+VS2019上怎么访问读取服务器文件夹里面的图片
VS已经配置了opencv环境,怎么mat m=imread(path);
opencv不支持内置访问远程地址图片,需要用socket下载到本地
#include <csdtio>
#include <Windows.h>
#include <WinInet.h>
#pragma comment(lib, "WinInet.lib")
using namespace std;
BOOL Ftp_SaveToFile(char *pszFileName, BYTE *pData, DWORD dwDataSize){
HANDLE hFile = CreateFile(pszFileName, GENERIC_READ | GENERIC_WRITE,
FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, CREATE_ALWAYS,
FILE_ATTRIBUTE_ARCHIVE, NULL);
if (INVALID_HANDLE_VALUE == hFile)
return FALSE;
DWORD dwRet = 0;
WriteFile(hFile, pData, dwDataSize, &dwRet, NULL);
CloseHandle(hFile);
return TRUE;
}
BOOL FTP_Download(char *szHostName, char *szUserName, char *szPassword, char *szUrlPath,char *SavePath){
HINTERNET hInternet, hConnect, hFTPFile = NULL;
BYTE *pDownloadData = NULL;
DWORD dwDownloadDataSize = 0;
DWORD dwBufferSize = 4096;
BYTE *pBuf = NULL;
DWORD dwBytesReturn = 0;
DWORD dwOffset = 0;
BOOL bRet = FALSE;
hInternet = InternetOpen("WinInet Ftp", INTERNET_OPEN_TYPE_PRECONFIG, NULL, NULL, 0);
hConnect = InternetConnect(hInternet, szHostName, INTERNET_INVALID_PORT_NUMBER,
szUserName, szPassword, INTERNET_SERVICE_FTP, INTERNET_FLAG_PASSIVE, 0);
hFTPFile = FtpOpenFile(hConnect, szUrlPath, GENERIC_READ, FTP_TRANSFER_TYPE_BINARY | INTERNET_FLAG_RELOAD, NULL);
dwDownloadDataSize = FtpGetFileSize(hFTPFile, NULL);
pDownloadData = new BYTE[dwDownloadDataSize];
RtlZeroMemory(pDownloadData, dwDownloadDataSize);
pBuf = new BYTE[dwBufferSize];
RtlZeroMemory(pBuf, dwBufferSize);
do{
bRet = InternetReadFile(hFTPFile, pBuf, dwBufferSize, &dwBytesReturn);
if (FALSE == bRet)
break;
RtlCopyMemory((pDownloadData + dwOffset), pBuf, dwBytesReturn);
dwOffset = dwOffset + dwBytesReturn;
} while (dwDownloadDataSize > dwOffset);
Ftp_SaveToFile(SavePath, pDownloadData, dwDownloadDataSize);
delete[] pDownloadData;
pDownloadData = NULL;
return TRUE;
}
int main(){
FTP_Download("192.168.108.100", "root", "123456", "/data/face/","/face_tmp/"); // /face_tmp换成临时文件目录,/data/face/后面加上图片名称
return 0;
}