在opencv自带的机器学习中经常用到对数据的预处理,本片博客纯属为了练习熟悉转化过程;
1.将txt文本数据内的带空格间隔的二维数字数组转化到Mat的训练中
#include<iostream>
#include<vector>
#include<string>
#include<sstream>
#include<fstream>
using namespace std;
void main() {
float a[3][3]{ {0} };
string str;
vector<float>s;
ifstream fin("123.txt");
int k = 0;
while(getline(fin,str))
{
int x = 0;
float i;
stringstream ss(str);
while (ss>>i)
{
a[k][x]=i;
cout << i << " ";
x++;
}
k++;
cout << endl;
}
for (int i = 0;i < 3;i++) {
for (int j = 0;j < 3;j++) {
cout << a[i][j] << " ";
}
cout << endl;
}
getchar();
}