Opencvで一括して画像を読み出して保存
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これまでpythonと書いていましたが、突然C++を使います.画像処理にかかわるので、一括して画像を読み取り、記憶する必要があります.ここでは、画像の一括処理コードをまとめます.
方法1:比較的に簡単で、唯一の要求はフォルダの下の画像の名前が規則的で、例えば1,2,3です.
方法2:一つ必要です.txtファイルは、動作ごとに画像名が1つずつ読み込まれるファイル内の画像の名前を格納します.
方法3:最も簡単で、1つの「dirent.h」ヘッダファイルだけで指定したフォルダのすべてのファイルを遍歴することができます.
以下dirent.hヘッダファイル(ファイルはVSインストールディレクトリのincludeフォルダの下に置く.私のパスはC:vs 2015VCinclude)
方法4:opencvのDirectoryライブラリを呼び出す:
前のいくつかの方法に比べて、個人はこの方法が最も頼りになると感じて、コードは簡潔で、便利な呼び出しです:
——————————————————————————————まとめ
方法1:比較的に簡単で、唯一の要求はフォルダの下の画像の名前が規則的で、例えば1,2,3です.
#include "opencv2/opencv.hpp"
#include "iostream"
using namespace std;
using namespace cv;
#define NUM 100 // image
int main()
{
Mat image;
string ImgName;
int n=1;
while(n<=NUM) //100
{
ImgName="woman";
//int string
stringstream ss;
string str;
ss<>str;
ImgName=ImgName+" ("+str+")"; // ：ImgName(n)
ImgName = "D:\\Mycode\\imagebank\\woman\\" + ImgName+".png";
cout<<" ："<//
if(image.data ==0)
{ printf("[error]
");}
n++;
}
waitKey(0);
system("pause");
return 4;
} 方法2:一つ必要です.txtファイルは、動作ごとに画像名が1つずつ読み込まれるファイル内の画像の名前を格納します.
#include "opencv2/opencv.hpp"
#include "iostream"
#include
using namespace std;
using namespace cv;
int main()
{
Mat image;
string ImgName;
ifstream fin("woman.txt");//
while(getline(fin,ImgName)) //
{
cout<<" ："<"D:\\Mycode\\woman\\" + ImgName+".png";
image= imread(ImgName);//
if(image.data ==0)
{printf("[error]
");return -5;}
}
waitKey(0);
return 4;
} 方法3:最も簡単で、1つの「dirent.h」ヘッダファイルだけで指定したフォルダのすべてのファイルを遍歴することができます.
#include "opencv2/opencv.hpp"
#include
#include
#include
#include "dirent.h"
using namespace std;
using namespace cv;
int main()
{
DIR *dir;
struct dirent *entry;
if((dir=opendir("D:\\Mycode\\VS2010work\\10Image_cut\\Image_cut\
operson"))==NULL)
printf( "Error opening
");
else {
while((entry=readdir(dir))!=NULL) {
cout<d_name<"pause");
return 0;
} 以下dirent.hヘッダファイル(ファイルはVSインストールディレクトリのincludeフォルダの下に置く.私のパスはC:vs 2015VCinclude)
/*
* Dirent interface for Microsoft Visual Studio
* Version 1.21
*
* Copyright (C) 2006-2012 Toni Ronkko
* This file is part of dirent. Dirent may be freely distributed
* under the MIT license. For all details and documentation, see
* https://github.com/tronkko/dirent
* http://www.softagalleria.net/dirent.php
* http://blog.csdn.net/thefinals/article/details/7174854
* https://zhidao.baidu.com/question/939784399849992372.html
* http://blog.chinaunix.net/uid-27213819-id-3810699.html
*/
#ifndef DIRENT_H
#define DIRENT_H
/*
* Define architecture flags so we don't need to include windows.h.
* Avoiding windows.h makes it simpler to use windows sockets in conjunction
* with dirent.h.
*/
#if !defined(_68K_) && !defined(_MPPC_) && !defined(_X86_) && !defined(_IA64_) && !defined(_AMD64_) && defined(_M_IX86)
# define _X86_
#endif
#if !defined(_68K_) && !defined(_MPPC_) && !defined(_X86_) && !defined(_IA64_) && !defined(_AMD64_) && defined(_M_AMD64)
#define _AMD64_
#endif
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
/* Indicates that d_type field is available in dirent structure */
#define _DIRENT_HAVE_D_TYPE
/* Indicates that d_namlen field is available in dirent structure */
#define _DIRENT_HAVE_D_NAMLEN
/* Entries missing from MSVC 6.0 */
#if !defined(FILE_ATTRIBUTE_DEVICE)
# define FILE_ATTRIBUTE_DEVICE 0x40
#endif
/* File type and permission flags for stat(), general mask */
#if !defined(S_IFMT)
# define S_IFMT _S_IFMT
#endif
/* Directory bit */
#if !defined(S_IFDIR)
# define S_IFDIR _S_IFDIR
#endif
/* Character device bit */
#if !defined(S_IFCHR)
# define S_IFCHR _S_IFCHR
#endif
/* Pipe bit */
#if !defined(S_IFFIFO)
# define S_IFFIFO _S_IFFIFO
#endif
/* Regular file bit */
#if !defined(S_IFREG)
# define S_IFREG _S_IFREG
#endif
/* Read permission */
#if !defined(S_IREAD)
# define S_IREAD _S_IREAD
#endif
/* Write permission */
#if !defined(S_IWRITE)
# define S_IWRITE _S_IWRITE
#endif
/* Execute permission */
#if !defined(S_IEXEC)
# define S_IEXEC _S_IEXEC
#endif
/* Pipe */
#if !defined(S_IFIFO)
# define S_IFIFO _S_IFIFO
#endif
/* Block device */
#if !defined(S_IFBLK)
# define S_IFBLK 0
#endif
/* Link */
#if !defined(S_IFLNK)
# define S_IFLNK 0
#endif
/* Socket */
#if !defined(S_IFSOCK)
# define S_IFSOCK 0
#endif
/* Read user permission */
#if !defined(S_IRUSR)
# define S_IRUSR S_IREAD
#endif
/* Write user permission */
#if !defined(S_IWUSR)
# define S_IWUSR S_IWRITE
#endif
/* Execute user permission */
#if !defined(S_IXUSR)
# define S_IXUSR 0
#endif
/* Read group permission */
#if !defined(S_IRGRP)
# define S_IRGRP 0
#endif
/* Write group permission */
#if !defined(S_IWGRP)
# define S_IWGRP 0
#endif
/* Execute group permission */
#if !defined(S_IXGRP)
# define S_IXGRP 0
#endif
/* Read others permission */
#if !defined(S_IROTH)
# define S_IROTH 0
#endif
/* Write others permission */
#if !defined(S_IWOTH)
# define S_IWOTH 0
#endif
/* Execute others permission */
#if !defined(S_IXOTH)
# define S_IXOTH 0
#endif
/* Maximum length of file name */
#if !defined(PATH_MAX)
# define PATH_MAX MAX_PATH
#endif
#if !defined(FILENAME_MAX)
# define FILENAME_MAX MAX_PATH
#endif
#if !defined(NAME_MAX)
# define NAME_MAX FILENAME_MAX
#endif
/* File type flags for d_type */
#define DT_UNKNOWN 0
#define DT_REG S_IFREG
#define DT_DIR S_IFDIR
#define DT_FIFO S_IFIFO
#define DT_SOCK S_IFSOCK
#define DT_CHR S_IFCHR
#define DT_BLK S_IFBLK
#define DT_LNK S_IFLNK
/* Macros for converting between st_mode and d_type */
#define IFTODT(mode) ((mode) & S_IFMT)
#define DTTOIF(type) (type)
/*
* File type macros. Note that block devices, sockets and links cannot be
* distinguished on Windows and the macros S_ISBLK, S_ISSOCK and S_ISLNK are
* only defined for compatibility. These macros should always return false
* on Windows.
*/
#if !defined(S_ISFIFO)
# define S_ISFIFO(mode) (((mode) & S_IFMT) == S_IFIFO)
#endif
#if !defined(S_ISDIR)
# define S_ISDIR(mode) (((mode) & S_IFMT) == S_IFDIR)
#endif
#if !defined(S_ISREG)
# define S_ISREG(mode) (((mode) & S_IFMT) == S_IFREG)
#endif
#if !defined(S_ISLNK)
# define S_ISLNK(mode) (((mode) & S_IFMT) == S_IFLNK)
#endif
#if !defined(S_ISSOCK)
# define S_ISSOCK(mode) (((mode) & S_IFMT) == S_IFSOCK)
#endif
#if !defined(S_ISCHR)
# define S_ISCHR(mode) (((mode) & S_IFMT) == S_IFCHR)
#endif
#if !defined(S_ISBLK)
# define S_ISBLK(mode) (((mode) & S_IFMT) == S_IFBLK)
#endif
/* Return the exact length of d_namlen without zero terminator */
#define _D_EXACT_NAMLEN(p) ((p)->d_namlen)
/* Return number of bytes needed to store d_namlen */
#define _D_ALLOC_NAMLEN(p) (PATH_MAX)
#ifdef __cplusplus
extern "C" {
#endif
/* Wide-character version */
struct _wdirent {
/* Always zero */
long d_ino;
/* Structure size */
unsigned short d_reclen;
/* Length of name without \0 */
size_t d_namlen;
/* File type */
int d_type;
/* File name */
wchar_t d_name[PATH_MAX];
};
typedef struct _wdirent _wdirent;
struct _WDIR {
/* Current directory entry */
struct _wdirent ent;
/* Private file data */
WIN32_FIND_DATAW data;
/* True if data is valid */
int cached;
/* Win32 search handle */
HANDLE handle;
/* Initial directory name */
wchar_t *patt;
};
typedef struct _WDIR _WDIR;
static _WDIR *_wopendir (const wchar_t *dirname);
static struct _wdirent *_wreaddir (_WDIR *dirp);
static int _wclosedir (_WDIR *dirp);
static void _wrewinddir (_WDIR* dirp);
/* For compatibility with Symbian */
#define wdirent _wdirent
#define WDIR _WDIR
#define wopendir _wopendir
#define wreaddir _wreaddir
#define wclosedir _wclosedir
#define wrewinddir _wrewinddir
/* Multi-byte character versions */
struct dirent {
/* Always zero */
long d_ino;
/* Structure size */
unsigned short d_reclen;
/* Length of name without \0 */
size_t d_namlen;
/* File type */
int d_type;
/* File name */
char d_name[PATH_MAX];
};
typedef struct dirent dirent;
struct DIR {
struct dirent ent;
struct _WDIR *wdirp;
};
typedef struct DIR DIR;
static DIR *opendir (const char *dirname);
static struct dirent *readdir (DIR *dirp);
static int closedir (DIR *dirp);
static void rewinddir (DIR* dirp);
/* Internal utility functions */
static WIN32_FIND_DATAW *dirent_first (_WDIR *dirp);
static WIN32_FIND_DATAW *dirent_next (_WDIR *dirp);
static int dirent_mbstowcs_s(
size_t *pReturnValue,
wchar_t *wcstr,
size_t sizeInWords,
const char *mbstr,
size_t count);
static int dirent_wcstombs_s(
size_t *pReturnValue,
char *mbstr,
size_t sizeInBytes,
const wchar_t *wcstr,
size_t count);
static void dirent_set_errno (int error);
/*
* Open directory stream DIRNAME for read and return a pointer to the
* internal working area that is used to retrieve individual directory
* entries.
*/
static _WDIR*
_wopendir(
const wchar_t *dirname)
{
_WDIR *dirp = NULL;
int error;
/* Must have directory name */
if (dirname == NULL || dirname[0] == '\0') {
dirent_set_errno (ENOENT);
return NULL;
}
/* Allocate new _WDIR structure */
dirp = (_WDIR*) malloc (sizeof (struct _WDIR));
if (dirp != NULL) {
DWORD n;
/* Reset _WDIR structure */
dirp->handle = INVALID_HANDLE_VALUE;
dirp->patt = NULL;
dirp->cached = 0;
/* Compute the length of full path plus zero terminator */
n = GetFullPathNameW (dirname, 0, NULL, NULL);
/* Allocate room for absolute directory name and search pattern */
dirp->patt = (wchar_t*) malloc (sizeof (wchar_t) * n + 16);
if (dirp->patt) {
/*
* Convert relative directory name to an absolute one. This
* allows rewinddir() to function correctly even when current
* working directory is changed between opendir() and rewinddir().
*/
n = GetFullPathNameW (dirname, n, dirp->patt, NULL);
if (n > 0) {
wchar_t *p;
/* Append search pattern \* to the directory name */
p = dirp->patt + n;
if (dirp->patt < p) {
switch (p[-1]) {
case '\\':
case '/':
case ':':
/* Directory ends in path separator, e.g. c:\temp\ */
/*NOP*/;
break;
default:
/* Directory name doesn't end in path separator */
*p++ = '\\';
}
}
*p++ = '*';
*p = '\0';
/* Open directory stream and retrieve the first entry */
if (dirent_first (dirp)) {
/* Directory stream opened successfully */
error = 0;
} else {
/* Cannot retrieve first entry */
error = 1;
dirent_set_errno (ENOENT);
}
} else {
/* Cannot retrieve full path name */
dirent_set_errno (ENOENT);
error = 1;
}
} else {
/* Cannot allocate memory for search pattern */
error = 1;
}
} else {
/* Cannot allocate _WDIR structure */
error = 1;
}
/* Clean up in case of error */
if (error && dirp) {
_wclosedir (dirp);
dirp = NULL;
}
return dirp;
}
/*
* Read next directory entry. The directory entry is returned in dirent
* structure in the d_name field. Individual directory entries returned by
* this function include regular files, sub-directories, pseudo-directories
* "." and ".." as well as volume labels, hidden files and system files.
*/
static struct _wdirent*
_wreaddir(
_WDIR *dirp)
{
WIN32_FIND_DATAW *datap;
struct _wdirent *entp;
/* Read next directory entry */
datap = dirent_next (dirp);
if (datap) {
size_t n;
DWORD attr;
/* Pointer to directory entry to return */
entp = &dirp->ent;
/*
* Copy file name as wide-character string. If the file name is too
* long to fit in to the destination buffer, then truncate file name
* to PATH_MAX characters and zero-terminate the buffer.
*/
n = 0;
while (n + 1 < PATH_MAX && datap->cFileName[n] != 0) {
entp->d_name[n] = datap->cFileName[n];
n++;
}
dirp->ent.d_name[n] = 0;
/* Length of file name excluding zero terminator */
entp->d_namlen = n;
/* File type */
attr = datap->dwFileAttributes;
if ((attr & FILE_ATTRIBUTE_DEVICE) != 0) {
entp->d_type = DT_CHR;
} else if ((attr & FILE_ATTRIBUTE_DIRECTORY) != 0) {
entp->d_type = DT_DIR;
} else {
entp->d_type = DT_REG;
}
/* Reset dummy fields */
entp->d_ino = 0;
entp->d_reclen = sizeof (struct _wdirent);
} else {
/* Last directory entry read */
entp = NULL;
}
return entp;
}
/*
* Close directory stream opened by opendir() function. This invalidates the
* DIR structure as well as any directory entry read previously by
* _wreaddir().
*/
static int
_wclosedir(
_WDIR *dirp)
{
int ok;
if (dirp) {
/* Release search handle */
if (dirp->handle != INVALID_HANDLE_VALUE) {
FindClose (dirp->handle);
dirp->handle = INVALID_HANDLE_VALUE;
}
/* Release search pattern */
if (dirp->patt) {
free (dirp->patt);
dirp->patt = NULL;
}
/* Release directory structure */
free (dirp);
ok = /*success*/0;
} else {
/* Invalid directory stream */
dirent_set_errno (EBADF);
ok = /*failure*/-1;
}
return ok;
}
/*
* Rewind directory stream such that _wreaddir() returns the very first
* file name again.
*/
static void
_wrewinddir(
_WDIR* dirp)
{
if (dirp) {
/* Release existing search handle */
if (dirp->handle != INVALID_HANDLE_VALUE) {
FindClose (dirp->handle);
}
/* Open new search handle */
dirent_first (dirp);
}
}
/* Get first directory entry (internal) */
static WIN32_FIND_DATAW*
dirent_first(
_WDIR *dirp)
{
WIN32_FIND_DATAW *datap;
/* Open directory and retrieve the first entry */
dirp->handle = FindFirstFileW (dirp->patt, &dirp->data);
if (dirp->handle != INVALID_HANDLE_VALUE) {
/* a directory entry is now waiting in memory */
datap = &dirp->data;
dirp->cached = 1;
} else {
/* Failed to re-open directory: no directory entry in memory */
dirp->cached = 0;
datap = NULL;
}
return datap;
}
/* Get next directory entry (internal) */
static WIN32_FIND_DATAW*
dirent_next(
_WDIR *dirp)
{
WIN32_FIND_DATAW *p;
/* Get next directory entry */
if (dirp->cached != 0) {
/* A valid directory entry already in memory */
p = &dirp->data;
dirp->cached = 0;
} else if (dirp->handle != INVALID_HANDLE_VALUE) {
/* Get the next directory entry from stream */
if (FindNextFileW (dirp->handle, &dirp->data) != FALSE) {
/* Got a file */
p = &dirp->data;
} else {
/* The very last entry has been processed or an error occured */
FindClose (dirp->handle);
dirp->handle = INVALID_HANDLE_VALUE;
p = NULL;
}
} else {
/* End of directory stream reached */
p = NULL;
}
return p;
}
/*
* Open directory stream using plain old C-string.
*/
static DIR*
opendir(
const char *dirname)
{
struct DIR *dirp;
int error;
/* Must have directory name */
if (dirname == NULL || dirname[0] == '\0') {
dirent_set_errno (ENOENT);
return NULL;
}
/* Allocate memory for DIR structure */
dirp = (DIR*) malloc (sizeof (struct DIR));
if (dirp) {
wchar_t wname[PATH_MAX];
size_t n;
/* Convert directory name to wide-character string */
error = dirent_mbstowcs_s (&n, wname, PATH_MAX, dirname, PATH_MAX);
if (!error) {
/* Open directory stream using wide-character name */
dirp->wdirp = _wopendir (wname);
if (dirp->wdirp) {
/* Directory stream opened */
error = 0;
} else {
/* Failed to open directory stream */
error = 1;
}
} else {
/*
* Cannot convert file name to wide-character string. This
* occurs if the string contains invalid multi-byte sequences or
* the output buffer is too small to contain the resulting
* string.
*/
error = 1;
}
} else {
/* Cannot allocate DIR structure */
error = 1;
}
/* Clean up in case of error */
if (error && dirp) {
free (dirp);
dirp = NULL;
}
return dirp;
}
/*
* Read next directory entry.
*
* When working with text consoles, please note that file names returned by
* readdir() are represented in the default ANSI code page while any output to
* console is typically formatted on another code page. Thus, non-ASCII
* characters in file names will not usually display correctly on console. The
* problem can be fixed in two ways: (1) change the character set of console
* to 1252 using chcp utility and use Lucida Console font, or (2) use
* _cprintf function when writing to console. The _cprinf() will re-encode
* ANSI strings to the console code page so many non-ASCII characters will
* display correcly.
*/
static struct dirent*
readdir(
DIR *dirp)
{
WIN32_FIND_DATAW *datap;
struct dirent *entp;
/* Read next directory entry */
datap = dirent_next (dirp->wdirp);
if (datap) {
size_t n;
int error;
/* Attempt to convert file name to multi-byte string */
error = dirent_wcstombs_s(
&n, dirp->ent.d_name, PATH_MAX, datap->cFileName, PATH_MAX);
/*
* If the file name cannot be represented by a multi-byte string,
* then attempt to use old 8+3 file name. This allows traditional
* Unix-code to access some file names despite of unicode
* characters, although file names may seem unfamiliar to the user.
*
* Be ware that the code below cannot come up with a short file
* name unless the file system provides one. At least
* VirtualBox shared folders fail to do this.
*/
if (error && datap->cAlternateFileName[0] != '\0') {
error = dirent_wcstombs_s(
&n, dirp->ent.d_name, PATH_MAX,
datap->cAlternateFileName, PATH_MAX);
}
if (!error) {
DWORD attr;
/* Initialize directory entry for return */
entp = &dirp->ent;
/* Length of file name excluding zero terminator */
entp->d_namlen = n - 1;
/* File attributes */
attr = datap->dwFileAttributes;
if ((attr & FILE_ATTRIBUTE_DEVICE) != 0) {
entp->d_type = DT_CHR;
} else if ((attr & FILE_ATTRIBUTE_DIRECTORY) != 0) {
entp->d_type = DT_DIR;
} else {
entp->d_type = DT_REG;
}
/* Reset dummy fields */
entp->d_ino = 0;
entp->d_reclen = sizeof (struct dirent);
} else {
/*
* Cannot convert file name to multi-byte string so construct
* an errornous directory entry and return that. Note that
* we cannot return NULL as that would stop the processing
* of directory entries completely.
*/
entp = &dirp->ent;
entp->d_name[0] = '?';
entp->d_name[1] = '\0';
entp->d_namlen = 1;
entp->d_type = DT_UNKNOWN;
entp->d_ino = 0;
entp->d_reclen = 0;
}
} else {
/* No more directory entries */
entp = NULL;
}
return entp;
}
/*
* Close directory stream.
*/
static int
closedir(
DIR *dirp)
{
int ok;
if (dirp) {
/* Close wide-character directory stream */
ok = _wclosedir (dirp->wdirp);
dirp->wdirp = NULL;
/* Release multi-byte character version */
free (dirp);
} else {
/* Invalid directory stream */
dirent_set_errno (EBADF);
ok = /*failure*/-1;
}
return ok;
}
/*
* Rewind directory stream to beginning.
*/
static void
rewinddir(
DIR* dirp)
{
/* Rewind wide-character string directory stream */
_wrewinddir (dirp->wdirp);
}
/* Convert multi-byte string to wide character string */
static int
dirent_mbstowcs_s(
size_t *pReturnValue,
wchar_t *wcstr,
size_t sizeInWords,
const char *mbstr,
size_t count)
{
int error;
#if defined(_MSC_VER) && _MSC_VER >= 1400
/* Microsoft Visual Studio 2005 or later */
error = mbstowcs_s (pReturnValue, wcstr, sizeInWords, mbstr, count);
#else
/* Older Visual Studio or non-Microsoft compiler */
size_t n;
/* Convert to wide-character string (or count characters) */
n = mbstowcs (wcstr, mbstr, sizeInWords);
if (!wcstr || n < count) {
/* Zero-terminate output buffer */
if (wcstr && sizeInWords) {
if (n >= sizeInWords) {
n = sizeInWords - 1;
}
wcstr[n] = 0;
}
/* Length of resuting multi-byte string WITH zero terminator */
if (pReturnValue) {
*pReturnValue = n + 1;
}
/* Success */
error = 0;
} else {
/* Could not convert string */
error = 1;
}
#endif
return error;
}
/* Convert wide-character string to multi-byte string */
static int
dirent_wcstombs_s(
size_t *pReturnValue,
char *mbstr,
size_t sizeInBytes, /* max size of mbstr */
const wchar_t *wcstr,
size_t count)
{
int error;
#if defined(_MSC_VER) && _MSC_VER >= 1400
/* Microsoft Visual Studio 2005 or later */
error = wcstombs_s (pReturnValue, mbstr, sizeInBytes, wcstr, count);
#else
/* Older Visual Studio or non-Microsoft compiler */
size_t n;
/* Convert to multi-byte string (or count the number of bytes needed) */
n = wcstombs (mbstr, wcstr, sizeInBytes);
if (!mbstr || n < count) {
/* Zero-terminate output buffer */
if (mbstr && sizeInBytes) {
if (n >= sizeInBytes) {
n = sizeInBytes - 1;
}
mbstr[n] = '\0';
}
/* Lenght of resulting multi-bytes string WITH zero-terminator */
if (pReturnValue) {
*pReturnValue = n + 1;
}
/* Success */
error = 0;
} else {
/* Cannot convert string */
error = 1;
}
#endif
return error;
}
/* Set errno variable */
static void
dirent_set_errno(
int error)
{
#if defined(_MSC_VER) && _MSC_VER >= 1400
/* Microsoft Visual Studio 2005 and later */
_set_errno (error);
#else
/* Non-Microsoft compiler or older Microsoft compiler */
errno = error;
#endif
}
#ifdef __cplusplus
}
#endif
#endif /*DIRENT_H*/ 方法4:opencvのDirectoryライブラリを呼び出す:
前のいくつかの方法に比べて、個人はこの方法が最も頼りになると感じて、コードは簡潔で、便利な呼び出しです:
#include
#include
#include
#include
#include
using namespace std;
using namespace cv;
int main()
{
Directory dir;
string path1 = "E:\\vsproject\\opencv\\opencvTest\\opencvTest\\ \\ ";
string exten1 = "*.png";
vector<string> filenames = dir.GetListFiles(path1, exten1, false);
int size = filenames.size();
for (int i = 0; i < size; i++)
{
cout << filenames[i] << endl;
}
system("pause");
return 0;
}——————————————————————————————まとめ