私はこの単純なプログラムを書いて、txtファイルから行列を読み込んで距離を計算しました。 Windows上でVisual Studioでプログラムをコンパイルする場合 私は、次のエラーを取得:エラーLNK2019:未解決の外部シンボルopencv
1>main.obj : error LNK2019: unresolved external symbol "void __cdecl cv::fastFree(void *)" ([email protected]@@[email protected]) referenced in function "public: __thiscall cv::Mat::~Mat(void)" ([email protected]@@[email protected])
1>system.obj : error LNK2001: unresolved external symbol "void __cdecl cv::fastFree(void *)" ([email protected]@@[email protected])
1>main.obj : error LNK2019: unresolved external symbol "public: void __thiscall cv::Mat::deallocate(void)" ([email protected]@[email protected]@QAEXXZ) referenced in function "public: void __thiscall cv::Mat::release(void)" ([email protected]@[email protected]@QAEXXZ)
1>system.obj : error LNK2001: unresolved external symbol "public: void __thiscall cv::Mat::deallocate(void)" ([email protected]@[email protected]@QAEXXZ)
1>main.obj : error LNK2019: unresolved external symbol "int __cdecl cv::_interlockedExchangeAdd(int *,int)" ([email protected]@@[email protected]) referenced in function "public: void __thiscall cv::Mat::release(void)" ([email protected]@[email protected]@QAEXXZ)
1>system.obj : error LNK2001: unresolved external symbol "int __cdecl cv::_interlockedExchangeAdd(int *,int)" ([email protected]@@[email protected])
1>system.obj : error LNK2019: unresolved external symbol "public: __thiscall cv::Exception::Exception(int,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &,int)" ([email protected]@@[email protected][email protected][email protected]@[email protected]@[email protected]@[email protected]@[email protected]@[email protected]) referenced in function "public: int & __thiscall cv::Mat::at<int>(int,int)" ([email protected]@[email protected]@@[email protected])
1>system.obj : error LNK2019: unresolved external symbol "public: virtual __thiscall cv::Exception::~Exception(void)" ([email protected]@@[email protected]) referenced in function "public: int & __thiscall cv::Mat::at<int>(int,int)" ([email protected]@[email protected]@@[email protected])
1>system.obj : error LNK2019: unresolved external symbol "void __cdecl cv::error(class cv::Exception const &)" ([email protected]@@[email protected]@@Z) referenced in function "public: int & __thiscall cv::Mat::at<int>(int,int)" ([email protected]@[email protected]@@[email protected])
1>system.obj : error LNK2019: unresolved external symbol "public: void __thiscall cv::Mat::create(int,int const *,int)" ([email protected]@[email protected]@[email protected]) referenced in function "public: void __thiscall cv::Mat::create(int,int,int)" ([email protected]@[email protected]@[email protected])
1>C:\Users\Ram\documents\visual studio 2012\Projects\descrip\Debug\descrip.exe : fatal error LNK1120: 7 unresolved externals
は、私は自分のコンピュータ上のOpenCV 2.4.6をintsalled、適切に視覚的なスタジオにそれをリンクさ。私が間違っているのは何
main.cppに
#include "system.h"
using namespace std;
int main(int argc, char* argv[]){
if(argc != 3){
cout << "Not enough arguments" << endl;
exit(-1);
}
System s(argv[2]);
s.Parse_Centers(argv[1]);
s.Run();
return 0;
}
system.h
#include <iostream>
#include <fstream>
#include <dirent.h>
#include <time.h>
#include "cv.h"
#include "highgui.h"
#include "opencv2/opencv.hpp"
#define NUM_CENTERS 5000
#define NUM_COL 512
using namespace cv;
class System{
public:
System(char *dir);
void Run();
void Parse_Centers(char* path);
void Compute_Histogram(const char* filename);
private:
Mat centers;
Mat centers_zero;
char *dir_path;
};
system.cpp
#include "system.h"
using namespace std;
using namespace cv;
System::System(char *dir){
centers.create(NUM_CENTERS, NUM_COL, CV_8U);
centers_zero.create(NUM_CENTERS, NUM_COL, CV_8U);
dir_path = dir;
};
void System::Parse_Centers(char* path){
ifstream fin;
int temp, n, line = 0;
fin.open(path);
if(!fin.good()){
throw 1;
}
while(!fin.eof()){
char buf[2048];
const char* token[NUM_COL] = {};
n = 0;
fin.getline(buf, 2048);
token[0] = strtok(buf, ",");
if(token[0]){
temp = atoi(token[0]);
if(temp){
centers.at<int>(line,n) = temp;
centers_zero.at<int>(line,n) = temp * temp;
}
for(int n = 1; n < 512; n++){
token[n] = strtok(0, ",");
temp = atoi(token[n]);
if(temp){
centers.at<int>(line,n) = temp;
centers_zero.at<int>(line,n) = temp * temp;
}
}
}
line++;
}
fin.close();
};
void System::Run(){
DIR *dir;
struct dirent *entry;
time_t start_t;
time_t end_t;
dir = opendir(dir_path);
if(!dir){
cout << "Directory wasn't found" << endl;
throw 3;
}
while((entry = readdir(dir)) != NULL){
if(entry->d_name[0] != '.'){
string path = string(dir_path) + "/" + string(entry->d_name);
cout << "entry: " << path;
time(&start_t);
Compute_Histogram(path.c_str());
time(&end_t);
cout << " " << difftime(start_t,end_t) << "sec" << endl;
}
}
closedir(dir);
}
void System::Compute_Histogram(const char* filename){
int dist[NUM_CENTERS];
int desc[NUM_CENTERS] = {0};
int temp, place = 0;
ifstream fin;
fin.open(filename);
if(!fin.good()){
throw 2;
}
while(!fin.eof()){
char buf[2048];
const char* token[512] = {};
fin.getline(buf, 2048);
token[0] = strtok(buf, ",");
if(token[0]){
temp = atoi(token[0]);
if(temp){
for(int i = 0; i < NUM_CENTERS; i++){
dist[i] = (temp - centers.at<int>(i,0)) * (temp - centers.at<int>(i,0));
}
}
else{
for(int i = 0; i < NUM_CENTERS; i++){
dist[i] = centers_zero.at<int>(i,0);
}
}
for(int n = 1; n < NUM_COL; n++){
token[n] = strtok(0, ",");
temp = atoi(token[n]);
if(temp){
for(int i = 0; i < NUM_CENTERS; i++){
dist[i] += (temp - centers.at<int>(i,n)) * (temp - centers.at<int>(i,n));
if((n == 511) && (i > 0)){
if(dist[i] < dist[place]){
place = i;
}
}
}
}
else{
for(int i = 0; i < NUM_CENTERS; i++){
dist[i] += centers_zero.at<int>(i,n);
if((n == 511) && (i > 0)){
if(dist[i] < dist[place]){
place = i;
}
}
}
}
}
}
desc[place]++;
}
fin.close();
ofstream outfile;
string path;
path = string(filename) + ".csv";
outfile.open(path.c_str());
for(int i = 0; i < 4999; i++){
outfile << desc[i] << ",";
}
outfile << desc[4999];
outfile.close();
};
????
CVライブラリはあなたのプロジェクトに適切にリンクされていないようです。 –
そして、LNK2019が何十時間も再びポップアップしました:-D – Abhineet
私は同じような経験をしています。これらの同じ欠落シンボル(例外およびinterlockedExchangeAdd)が表示されます。私はopencvのライブラリを削除すると、さらに多くのシンボルが失われますが、それらがすべて追加されると、これらのシンボルはまだ失われています。ここに何か他のことがあります.. –