配合翔云平台完成人脸识别车牌识别

本文主要是介绍配合翔云平台完成人脸识别车牌识别，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

注册网址：https://www.netocr.com/
1.注册完翔云平台
2.购买0.01体验一下人脸识别（本文的车牌识别各种识别使用方法相同道理）
购买完成可在个人中心查看到
在这里插入图片描述

人脸识别
3.人脸识别api文档
在这里插入图片描述

以下操作要在同一个文件底下
我的是在~/httpHandler,将需要的两张图片也放到该文件路径下

demo3.c代码

#include <stdio.h>
#include <curl/curl.h>
#include <string.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>#define true 1
#define false 0
typedef unsigned int bool;
char buf[10240] = {'\0'};size_t readData( void *ptr, size_t size, size_t nmemb, void *stream)
{strncpy(buf,ptr,1024);printf("========================get Data=====================");printf("%s\n",buf);
}char *getPicBase64FromFile(char *filePath)
{char *bufPic;char cmd[128] = {'\0'};
//      system("base64 laopo1.jpg > tmpFile");          //使用base64解析图片并放在tmFile中sprintf(cmd,"base64 %s >tmpFile",filePath);system(cmd);int fd = open("./tmpFile",O_RDWR);              //可读可写的方式打开int filelen = lseek(fd,0,SEEK_END);             //用lseek计算长度lseek(fd,0,SEEK_SET);                           //光标指回开头bufPic = (char *)malloc(filelen+2);memset(bufPic,'\0',filelen+2);read(fd,bufPic,filelen);close(fd);system("rm -f tmpFile");                        //删除临时文件return bufPic;
}bool postUrl()
{CURL *curl;CURLcode res;char *postString;char *key = "************************";char *secret = "****************************";int typeId = 21;char *format = "xml";char *bufPic1 = getPicBase64FromFile("./reba1.jpg");char *bufPic2 = getPicBase64FromFile("./reba2.jpg");int len = strlen(key)+strlen(secret)+strlen(bufPic1)+strlen(bufPic2)+124;postString = (char *)malloc(len);       //开辟空间memset(postString,'\0',len);sprintf(postString,"&img1=%s&img2=%s&key=%s&secret=%s&typeId=%d&format=%s",bufPic1,bufPic2,key,secret,21,format);curl = curl_easy_init();                                        //初始化if (curl){curl_easy_setopt(curl, CURLOPT_POSTFIELDS, postString);    // 指定post内容curl_easy_setopt(curl, CURLOPT_URL, "https://netocr.com/api/faceliu.do");   // 指定urlcurl_easy_setopt(curl, CURLOPT_WRITEFUNCTION,readData);         //调打印数据res = curl_easy_perform(curl);          //请求printf("ok:%d\n",res);if(strstr(buf,"是") != NULL){printf("the same Person\n");}else{printf("diff Person\n");}curl_easy_cleanup(curl);}return true;
}
int main(void)
{postUrl();
}

4.修改demo3.c代码
4.1将post内容定义出来并且添加
4.2将url改成人脸识别的url（接口地址）

5.进行编译生成a.out文件

gcc demo2.c -I ./curl-7.71.1/_install/include/ -L ./curl-7.71.1/_install//lib/ -lcurl

如果a.out运行发现出现错误：./a.out: error while loading shared libraries: libcurl.so.4: cannot open shared object file: No such file or directory

export LD_LIBRARY_PATH=./curl-7.71.1/_install/lib/

只要图片符合要求即可看到结果，不符合则降低图片的分辨率。

车牌识别
将chepai2.jpg放在~httpHandler底下操作步骤同上

车牌识别api文档
在这里插入图片描述

democar.c代码

#include <stdio.h>
#include <curl/curl.h>
#include <string.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>#define true 1
#define false 0
typedef unsigned int bool;
char buf[10240] = {'\0'};size_t readData( void *ptr, size_t size, size_t nmemb, void *stream)
{strncpy(buf,ptr,1024);printf("========================get Data=====================");printf("%s\n",buf);
}char *getPicBase64FromFile(char *filePath)
{char *bufPic;char cmd[128] = {'\0'};
//      system("base64 laopo1.jpg > tmpFile");          //使用base64解析图片并放在tmFile中sprintf(cmd,"base64 %s >tmpFile",filePath);system(cmd);int fd = open("./tmpFile",O_RDWR);              //可读可写的方式打开int filelen = lseek(fd,0,SEEK_END);             //用lseek计算长度lseek(fd,0,SEEK_SET);                           //光标指回开头bufPic = (char *)malloc(filelen+2);memset(bufPic,'\0',filelen+2);read(fd,bufPic,filelen);close(fd);system("rm -f tmpFile");                        //删除临时文件return bufPic;
}bool postUrl()
{CURL *curl;CURLcode res;char *postString;char *key = "***************************";char *secret = "*********************";int typeId = 19;char *format = "xml";char *bufPic1 = getPicBase64FromFile("./chepai2.jpg");int len = strlen(key)+strlen(secret)+strlen(bufPic1)+124;postString = (char *)malloc(len);       //开辟空间memset(postString,'\0',len);sprintf(postString,"&img=%s&key=%s&secret=%s&typeId=%d&format=%s",bufPic1,key,secret,19,format);curl = curl_easy_init();                                        //初始化if (curl){curl_easy_setopt(curl, CURLOPT_POSTFIELDS, postString);    // 指定post内容curl_easy_setopt(curl, CURLOPT_URL, "https://netocr.com/api/recogliu.do");   // 指定urlcurl_easy_setopt(curl, CURLOPT_WRITEFUNCTION,readData);         //调打印数据res = curl_easy_perform(curl);          //请求printf("ok:%d\n",res);if(strstr(buf,"是") != NULL){
//                        printf("the same Person\n");}else{
//                        printf("diff Person\n");}curl_easy_cleanup(curl);}return true;
}
int main(void)
{postUrl();
}