#include???
#include???
??
#include?“opencv2/core/core.hpp“??
#include?“opencv2/highgui/highgui.hpp“??
#include?“opencv2/imgproc/imgproc.hpp“??
??
using?namespace?std;??
??
//英特爾處理器和其他低端機用戶必須翻轉頭字節。??
int?ReverseInt（int?i）???
{??
????unsigned?char?ch1?ch2?ch3?ch4;??
????ch1?=?i?&?255;??
????ch2?=?（i?>>?8）?&?255;??
????ch3?=?（i?>>?16）?&?255;??
????ch4?=?（i?>>?24）?&?255;??
????return（（int）?ch1?<}??
//讀取訓練與測試數據??
void?read_Mnist（string?filename?vector?&vec）??
{??
????ifstream?file?（filename?ios::binary）;??
????if?（file.is_open（））???
????{??
????????int?magic_number?=?0;??
????????int?number_of_images?=?0;??
????????int?n_rows?=?0;??
????????int?n_cols?=?0;??
????????//從文件中讀取sizeof（magic_number）?個字符到?&magic_number??
????????file.read（（char*）?&magic_number?sizeof（magic_number））;???
????????magic_number?=?ReverseInt（magic_number）;??
????????//獲取訓練或測試image的個數number_of_images???
????????file.read（（char*）?&number_of_imagessizeof（number_of_images））;??
????????number_of_images?=?ReverseInt（number_of_images）;????
????????//獲取訓練或測試圖像的高度Heigh??
????????file.read（（char*）?&n_rows?sizeof（n_rows））;??
????????n_rows?=?ReverseInt（n_rows）;??????????????????
????????//獲取訓練或測試圖像的寬度Width??
????????file.read（（char*）?&n_cols?sizeof（n_cols））;??
????????n_cols?=?ReverseInt（n_cols）;??
????????//獲取第i幅圖像，保存到vec中??
????????for（int?i?=?0;?i?????????{??
????????????cv::Mat?tp?=?cv::Mat::zeros（n_rows?n_cols?CV_8UC1）;??
????????????for（int?r?=?0;?r?????????????{??
????????????????for（int?c?=?0;?c?????????????????{??
????????????????????unsigned?char?temp?=?0;??
????????????????????file.read（（char*）?&temp?sizeof（temp））;??
????????????????????tp.at（r?c）?=?（int）?temp;??
????????????????}??
????????????}??
????????????vec.push_back（tp）;????
????????}??
????}??
}??
??
//讀取訓練與測試標簽??
void?read_Mnist_Label（string?filename?vector?&vec）??
{??
????ifstream?file?（filename?ios::binary）;??
????if?（file.is_open（））?{??
????????int?magic_number?=?0;??
????????int?number_of_images?=?0;??
????????int?n_rows?=?0;??
????????int?n_cols?=?0;??
????????file.read（（char*）?&magic_number?sizeof（magic_number））;??
????????magic_number?=?ReverseInt（magic_number）;??
??
????????file.read（（char*）?&number_of_imagessizeof（number_of_images））;??
????????number_of_images?=?ReverseInt（number_of_images）;??
??
????????for（int?i?=?0;?i?????????{??
????????????unsigned?char?temp?=?0;??
????????????file.read（（char*）?&temp?sizeof（temp））;??
????????????vec[i]=?（int）temp;??
????????}??
????}??
}??
??
string?GetImageName（int?number?int?arr[]）??
{??
????string?str1?str2;??
??
????for?（int?i?=?0;?i?????????if?（number?==?i）?{??
????????????arr[i]++;??
????????????char?ch1[10];????
????????????sprintf（ch1?“%d“?arr[i]）;?????
?????