营业执照识别
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          文字识别

          营业执照识别

          接口描述

          支持对不同版式营业执照的证件编号、社会信用代码、单位名称、地址、法人、类型、成立日期、有效日期、经营范围等关键字段进行结构化识别

          请求说明

          请求示例

          HTTP 方法: POST

          请求URL: https://aip.baidubce.com/rest/2.0/ocr/v1/business_license

          URL参数:

          参数
          access_token 通过API Key和Secret Key获取的access_token,参考“Access Token获取

          Header如下:

          参数
          Content-Type application/x-www-form-urlencoded

          Body中放置请求参数,参数详情如下:

          请求参数

          参数 类型 是否必须 说明
          image string 和url二选一 图像数据,base64编码后进行urlencode,要求base64编码和urlencode后大小不超过4M,最短边至少15px,最长边最大4096px,支持jpg/jpeg/png/bmp格式
          url string 和image二选一 图片完整URL,URL长度不超过1024字节,URL对应的图片base64编码后大小不超过4M,最短边至少15px,最长边最大4096px,支持jpg/jpeg/png/bmp格式,当image字段存在时url字段失效
          请注意关闭URL防盗链
          detect_direction string 此参数新版本无需传,支持自动检测图像旋转角度;朝向是指输入图像是正常方向、逆时针旋转90/180/270度
          accuracy string 可选值:normal,high参数选normal或为空使用快速服务;选择high使用高精度服务,但是时延会根据具体图片有相应的增加

          请求代码示例

          提示一:使用示例代码前,请记得替换其中的示例Token、图片地址或Base64信息。

          提示二:部分语言依赖的类或库,请在代码注释中查看下载地址。

          curl -i -k 'https://aip.baidubce.com/rest/2.0/ocr/v1/business_license?access_token=【调用鉴权接口获取的token】' --data 'image=【图片Base64编码,需UrlEncode】' -H 'Content-Type:application/x-www-form-urlencoded'
          # encoding:utf-8
          
          import requests
          import base64
          
          '''
          营业执照识别
          '''
          
          request_url = "https://aip.baidubce.com/rest/2.0/ocr/v1/business_license"
          # 二进制方式打开图片文件
          f = open('[本地文件]', 'rb')
          img = base64.b64encode(f.read())
          
          params = {"image":img}
          access_token = '[调用鉴权接口获取的token]'
          request_url = request_url + "?access_token=" + access_token
          headers = {'content-type': 'application/x-www-form-urlencoded'}
          response = requests.post(request_url, data=params, headers=headers)
          if response:
              print (response.json())
          package com.baidu.ai.aip;
          
          import com.baidu.ai.aip.utils.Base64Util;
          import com.baidu.ai.aip.utils.FileUtil;
          import com.baidu.ai.aip.utils.HttpUtil;
          
          import java.net.URLEncoder;
          
          /**
          * 营业执照识别
          */
          public class BusinessLicense {
          
              /**
              * 重要提示代码中所需工具类
              * FileUtil,Base64Util,HttpUtil,GsonUtils请从
              * https://ai.baidu.com/file/658A35ABAB2D404FBF903F64D47C1F72
              * https://ai.baidu.com/file/C8D81F3301E24D2892968F09AE1AD6E2
              * https://ai.baidu.com/file/544D677F5D4E4F17B4122FBD60DB82B3
              * https://ai.baidu.com/file/470B3ACCA3FE43788B5A963BF0B625F3
              * 下载
              */
              public static String businessLicense() {
                  // 请求url
                  String url = "https://aip.baidubce.com/rest/2.0/ocr/v1/business_license";
                  try {
                      // 本地文件路径
                      String filePath = "[本地文件路径]";
                      byte[] imgData = FileUtil.readFileByBytes(filePath);
                      String imgStr = Base64Util.encode(imgData);
                      String imgParam = URLEncoder.encode(imgStr, "UTF-8");
          
                      String param = "image=" + imgParam;
          
                      // 注意这里仅为了简化编码每一次请求都去获取access_token,线上环境access_token有过期时间, 客户端可自行缓存,过期后重新获取。
                      String accessToken = "[调用鉴权接口获取的token]";
          
                      String result = HttpUtil.post(url, accessToken, param);
                      System.out.println(result);
                      return result;
                  } catch (Exception e) {
                      e.printStackTrace();
                  }
                  return null;
              }
          
              public static void main(String[] args) {
                  BusinessLicense.businessLicense();
              }
          }
          #include <iostream>
          #include <curl/curl.h>
          
          // libcurl库下载链接:https://curl.haxx.se/download.html
          // jsoncpp库下载链接:https://github.com/open-source-parsers/jsoncpp/
          const static std::string request_url = "https://aip.baidubce.com/rest/2.0/ocr/v1/business_license";
          static std::string businessLicense_result;
          /**
          * curl发送http请求调用的回调函数,回调函数中对返回的json格式的body进行了解析,解析结果储存在全局的静态变量当中
          * @param 参数定义见libcurl文档
          * @return 返回值定义见libcurl文档
          */
          static size_t callback(void *ptr, size_t size, size_t nmemb, void *stream) {
              // 获取到的body存放在ptr中,先将其转换为string格式
              businessLicense_result = std::string((char *) ptr, size * nmemb);
              return size * nmemb;
          }
          /**
          * 营业执照识别
          * @return 调用成功返回0,发生错误返回其他错误码
          */
          int businessLicense(std::string &json_result, const std::string &access_token) {
              std::string url = request_url + "?access_token=" + access_token;
              CURL *curl = NULL;
              CURLcode result_code;
              int is_success;
              curl = curl_easy_init();
              if (curl) {
                  curl_easy_setopt(curl, CURLOPT_URL, url.data());
                  curl_easy_setopt(curl, CURLOPT_POST, 1);
                  curl_httppost *post = NULL;
                  curl_httppost *last = NULL;
                  curl_formadd(&post, &last, CURLFORM_COPYNAME, "image", CURLFORM_COPYCONTENTS, "【base64_img】", CURLFORM_END);
          
                  curl_easy_setopt(curl, CURLOPT_HTTPPOST, post);
                  curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, callback);
                  result_code = curl_easy_perform(curl);
                  if (result_code != CURLE_OK) {
                      fprintf(stderr, "curl_easy_perform() failed: %s\n",
                              curl_easy_strerror(result_code));
                      is_success = 1;
                      return is_success;
                  }
                  json_result = businessLicense_result;
                  curl_easy_cleanup(curl);
                  is_success = 0;
              } else {
                  fprintf(stderr, "curl_easy_init() failed.");
                  is_success = 1;
              }
              return is_success;
          }
          <?php
          /**
          * 发起http post请求(REST API), 并获取REST请求的结果
          * @param string $url
          * @param string $param
          * @return - http response body if succeeds, else false.
          */
          function request_post($url = '', $param = '')
          {
              if (empty($url) || empty($param)) {
                  return false;
              }
          
              $postUrl = $url;
              $curlPost = $param;
              // 初始化curl
              $curl = curl_init();
              curl_setopt($curl, CURLOPT_URL, $postUrl);
              curl_setopt($curl, CURLOPT_HEADER, 0);
              // 要求结果为字符串且输出到屏幕上
              curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
              curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
              // post提交方式
              curl_setopt($curl, CURLOPT_POST, 1);
              curl_setopt($curl, CURLOPT_POSTFIELDS, $curlPost);
              // 运行curl
              $data = curl_exec($curl);
              curl_close($curl);
          
              return $data;
          }
          
          $token = '[调用鉴权接口获取的token]';
          $url = 'https://aip.baidubce.com/rest/2.0/ocr/v1/business_license?access_token=' . $token;
          $img = file_get_contents('[本地文件路径]');
          $img = base64_encode($img);
          $bodys = array(
              'image' => $img
          );
          $res = request_post($url, $bodys);
          
          var_dump($res);
          using System;
          using System.IO;
          using System.Net;
          using System.Text;
          using System.Web;
          
          namespace com.baidu.ai
          {
              public class BusinessLicense
              {
                  // 营业执照识别
                  public static string businessLicense()
                  {
                      string token = "[调用鉴权接口获取的token]";
                      string host = "https://aip.baidubce.com/rest/2.0/ocr/v1/business_license?access_token=" + token;
                      Encoding encoding = Encoding.Default;
                      HttpWebRequest request = (HttpWebRequest)WebRequest.Create(host);
                      request.Method = "post";
                      request.KeepAlive = true;
                      // 图片的base64编码
                      string base64 = getFileBase64("[本地图片文件]");
                      String str = "image=" + HttpUtility.UrlEncode(base64);
                      byte[] buffer = encoding.GetBytes(str);
                      request.ContentLength = buffer.Length;
                      request.GetRequestStream().Write(buffer, 0, buffer.Length);
                      HttpWebResponse response = (HttpWebResponse)request.GetResponse();
                      StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.Default);
                      string result = reader.ReadToEnd();
                      Console.WriteLine("营业执照识别:");
                      Console.WriteLine(result);
                      return result;
                  }
          
                  public static String getFileBase64(String fileName) {
                      FileStream filestream = new FileStream(fileName, FileMode.Open);
                      byte[] arr = new byte[filestream.Length];
                      filestream.Read(arr, 0, (int)filestream.Length);
                      string baser64 = Convert.ToBase64String(arr);
                      filestream.Close();
                      return baser64;
                  }
              }
          }

          返回说明

          返回参数

          参数 是否必须 类型 说明
          log_id uint64 请求标识码,随机数,唯一。
          direction int32 图像方向,当图像旋转时,返回该参数。
          - -1:未定义,
          - 0:正向,
          - 1: 逆时针90度,
          - 2:逆时针180度,
          - 3:逆时针270度
          words_result_num uint32 识别结果数,表示words_result的元素个数
          words_result object{} 识别结果
          left uint32 表示定位位置的长方形左上顶点的水平坐标
          top uint32 表示定位位置的长方形左上顶点的垂直坐标
          width uint32 表示定位位置的长方形的宽度
          height uint32 表示定位位置的长方形的高度
          words string 识别结果字符串

          返回示例

          {
              "log_id": 490058765,
              "words_result": {
                  "社会信用代码": {
                      "words": "10440119MA06M8503",
                      "location": {
                          "top": 296,
                          "left": 237,
                          "width": 178,
                          "height": 18
                      }
                  },
                  "组成形式": {
                      "words": "无",
                      "location": {
                          "top": -1,
                          "left": -1,
                          "width": 0,
                          "height": 0
                      }
                  },
                  "经营范围": {
                      "words": "商务服务业",
                      "location": {
                          "top": 587,
                          "left": 378,
                          "width": 91,
                          "height": 18
                      }
                  },
                  "成立日期": {
                      "words": "2019年01月01日",
                      "location": {
                          "top": 482,
                          "left": 1045,
                          "width": 119,
                          "height": 19
                      }
                  },
                  "法人": {
                      "words": "方平",
                      "location": {
                          "top": 534,
                          "left": 377,
                          "width": 39,
                          "height": 19
                      }
                  },
                  "注册资本": {
                      "words": "200万元",
                      "location": {
                          "top": 429,
                          "left": 1043,
                          "width": 150,
                          "height": 19
                      }
                  },
                  "证件编号": {
                      "words": "921MA190538210301",
                      "location": {
                          "top": 216,
                          "left": 298,
                          "width": 146,
                          "height": 16
                      }
                  },
                  "地址": {
                      "words": "广州市",
                      "location": {
                          "top": 585,
                          "left": 1041,
                          "width": 55,
                          "height": 19
                      }
                  },
                  "单位名称": {
                      "words": "有限公司",
                      "location": {
                          "top": 429,
                          "left": 382,
                          "width": 72,
                          "height": 19
                      }
                  },
                  "有效期": {
                      "words": "长期",
                      "location": {
                          "top": 534,
                          "left": 1045,
                          "width": 0,
                          "height": 0
                      }
                  },
                  "类型": {
                      "words": "有限责任公司(自然人投资或控股)",
                      "location": {
                          "top": 482,
                          "left": 382,
                          "width": 260,
                          "height": 18
                      }
                  }
              },
              "log_id": 1310106134421438464,
              "words_result_num": 11
          }
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