神经网络识别字母A-Z

神经网络识别字符

1. http://blog.youkuaiyun.com/lxx_123456/article/details/79346098这篇博客只能识别数字，对它进行改善之后可以识别字母。
2. 首先准备好要训练的字符集，然后开始训练样本。

#include<windows.h>
#include <opencv2/opencv.hpp>
#include<iostream>
//#include "opencv2/imgproc/imgproc.hpp"
//#include "opencv2/imgcodecs/imgcodecs.hpp"
//#include "opencv2/highgui/highgui.hpp"
//#include "opencv2/ml/ml.hpp"

using namespace cv;
using namespace std;
using namespace ml;
char* WcharToChar(const wchar_t* wp)
{
    char *m_char;
    int len = WideCharToMultiByte(CP_ACP, 0, wp, wcslen(wp), NULL, 0, NULL, NULL);
    m_char = new char[len + 1];
    WideCharToMultiByte(CP_ACP, 0, wp, wcslen(wp), m_char, len, NULL, NULL);
    m_char[len] = '\0';
    return m_char;
}

wchar_t* CharToWchar(const char* c)
{
    wchar_t *m_wchar;
    int len = MultiByteToWideChar(CP_ACP, 0, c, strlen(c), NULL, 0);
    m_wchar = new wchar_t[len + 1];
    MultiByteToWideChar(CP_ACP, 0, c, strlen(c), m_wchar, len);
    m_wchar[len] = '\0';
    return m_wchar;
}

wchar_t* StringToWchar(const string& s)
{
    const char* p = s.c_str();
    return<