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接口描述

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支持对中国大陆护照个人资料页所有15个字段进行结构化识别，包括国家码、护照号、姓名、姓名拼音、性别、出生地点、出生日期、签发地点（不支持境外签发地）、签发日期、有效期、签发机关、护照类型、国籍、MRZCode1、MRZCode2。

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在线调试

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您可以在 示例代码中心 中调试该接口，可进行签名验证、查看在线调用的请求内容和返回结果、示例代码的自动生成。

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请求说明

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请求示例

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HTTP 方法：POST

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

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URL参数：

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参数值
access_token通过API Key和Secret Key获取的access_token,参考“Access Token获取”
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Header如下：

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参数值
Content-Typeapplication/x-www-form-urlencoded
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Body中放置请求参数，参数详情如下：

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请求参数

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参数是否必选类型可选值范围说明
image和url二选一string-图像数据，base64编码后进行urlencode，需去掉编码头（data:image/jpeg;base64, ）
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和image二选一string-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
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请求代码示例

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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。

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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。

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1curl -i -k 'https://aip.baidubce.com/rest/2.0/ocr/v1/passport?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'
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1# encoding:utf-8\n2\n3import requests\n4import base64\n5\n6'''\n7护照识别\n8'''\n9\n10request_url = \"https://aip.baidubce.com/rest/2.0/ocr/v1/passport\"\n11# 二进制方式打开图片文件\n12f = open('[本地文件]', 'rb')\n13img = base64.b64encode(f.read())\n14\n15params = {\"image\":img}\n16access_token = '[调用鉴权接口获取的token]'\n17request_url = request_url + \"?access_token=\" + access_token\n18headers = {'content-type': 'application/x-www-form-urlencoded'}\n19response = requests.post(request_url, data=params, headers=headers)\n20if response:\n21    print (response.json())
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1package com.baidu.ai.aip;\n2\n3import com.baidu.ai.aip.utils.Base64Util;\n4import com.baidu.ai.aip.utils.FileUtil;\n5import com.baidu.ai.aip.utils.HttpUtil;\n6\n7import java.net.URLEncoder;\n8\n9/**\n10* 护照识别\n11*/\n12public class Passport {\n13\n14    /**\n15    * 重要提示代码中所需工具类\n16    * FileUtil,Base64Util,HttpUtil,GsonUtils请从\n17    * https://ai.baidu.com/file/658A35ABAB2D404FBF903F64D47C1F72\n18    * https://ai.baidu.com/file/C8D81F3301E24D2892968F09AE1AD6E2\n19    * https://ai.baidu.com/file/544D677F5D4E4F17B4122FBD60DB82B3\n20    * https://ai.baidu.com/file/470B3ACCA3FE43788B5A963BF0B625F3\n21    * 下载\n22    */\n23    public static String passport() {\n24        // 请求url\n25        String url = \"https://aip.baidubce.com/rest/2.0/ocr/v1/passport\";\n26        try {\n27            // 本地文件路径\n28            String filePath = \"[本地文件路径]\";\n29            byte[] imgData = FileUtil.readFileByBytes(filePath);\n30            String imgStr = Base64Util.encode(imgData);\n31            String imgParam = URLEncoder.encode(imgStr, \"UTF-8\");\n32\n33            String param = \"image=\" + imgParam;\n34\n35            // 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。\n36            String accessToken = \"[调用鉴权接口获取的token]\";\n37\n38            String result = HttpUtil.post(url, accessToken, param);\n39            System.out.println(result);\n40            return result;\n41        } catch (Exception e) {\n42            e.printStackTrace();\n43        }\n44        return null;\n45    }\n46\n47    public static void main(String[] args) {\n48        Passport.passport();\n49    }\n50}
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1#include <iostream>\n2#include <curl/curl.h>\n3\n4// libcurl库下载链接：https://curl.haxx.se/download.html\n5// jsoncpp库下载链接：https://github.com/open-source-parsers/jsoncpp/\n6const static std::string request_url = \"https://aip.baidubce.com/rest/2.0/ocr/v1/passport\";\n7static std::string passport_result;\n8/**\n9* 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\n10* @param 参数定义见libcurl文档\n11* @return 返回值定义见libcurl文档\n12*/\n13static size_t callback(void *ptr, size_t size, size_t nmemb, void *stream) {\n14    // 获取到的body存放在ptr中，先将其转换为string格式\n15    passport_result = std::string((char *) ptr, size * nmemb);\n16    return size * nmemb;\n17}\n18/**\n19* 护照识别\n20* @return 调用成功返回0，发生错误返回其他错误码\n21*/\n22int passport(std::string &json_result, const std::string &access_token) {\n23    std::string url = request_url + \"?access_token=\" + access_token;\n24    CURL *curl = NULL;\n25    CURLcode result_code;\n26    int is_success;\n27    curl = curl_easy_init();\n28    if (curl) {\n29        curl_easy_setopt(curl, CURLOPT_URL, url.data());\n30        curl_easy_setopt(curl, CURLOPT_POST, 1);\n31        curl_httppost *post = NULL;\n32        curl_httppost *last = NULL;\n33        curl_formadd(&post, &last, CURLFORM_COPYNAME, \"image\", CURLFORM_COPYCONTENTS, \"【base64_img】\", CURLFORM_END);\n34\n35        curl_easy_setopt(curl, CURLOPT_HTTPPOST, post);\n36        curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, callback);\n37        result_code = curl_easy_perform(curl);\n38        if (result_code != CURLE_OK) {\n39            fprintf(stderr, \"curl_easy_perform() failed: %s\\n\",\n40                    curl_easy_strerror(result_code));\n41            is_success = 1;\n42            return is_success;\n43        }\n44        json_result = passport_result;\n45        curl_easy_cleanup(curl);\n46        is_success = 0;\n47    } else {\n48        fprintf(stderr, \"curl_easy_init() failed.\");\n49        is_success = 1;\n50    }\n51    return is_success;\n52}
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1<?php\n2/**\n3* 发起http post请求(REST API), 并获取REST请求的结果\n4* @param string $url\n5* @param string $param\n6* @return - http response body if succeeds, else false.\n7*/\n8function request_post($url = '', $param = '')\n9{\n10    if (empty($url) || empty($param)) {\n11        return false;\n12    }\n13\n14    $postUrl = $url;\n15    $curlPost = $param;\n16    // 初始化curl\n17    $curl = curl_init();\n18    curl_setopt($curl, CURLOPT_URL, $postUrl);\n19    curl_setopt($curl, CURLOPT_HEADER, 0);\n20    // 要求结果为字符串且输出到屏幕上\n21    curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);\n22    curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);\n23    // post提交方式\n24    curl_setopt($curl, CURLOPT_POST, 1);\n25    curl_setopt($curl, CURLOPT_POSTFIELDS, $curlPost);\n26    // 运行curl\n27    $data = curl_exec($curl);\n28    curl_close($curl);\n29\n30    return $data;\n31}\n32\n33$token = '[调用鉴权接口获取的token]';\n34$url = 'https://aip.baidubce.com/rest/2.0/ocr/v1/passport?access_token=' . $token;\n35$img = file_get_contents('[本地文件路径]');\n36$img = base64_encode($img);\n37$bodys = array(\n38    'image' => $img\n39);\n40$res = request_post($url, $bodys);\n41\n42var_dump($res);
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1using System;\n2using System.IO;\n3using System.Net;\n4using System.Text;\n5using System.Web;\n6\n7namespace com.baidu.ai\n8{\n9    public class Passport\n10    {\n11        // 护照识别\n12        public static string passport()\n13        {\n14            string token = \"[调用鉴权接口获取的token]\";\n15            string host = \"https://aip.baidubce.com/rest/2.0/ocr/v1/passport?access_token=\" + token;\n16            Encoding encoding = Encoding.Default;\n17            HttpWebRequest request = (HttpWebRequest)WebRequest.Create(host);\n18            request.Method = \"post\";\n19            request.KeepAlive = true;\n20            // 图片的base64编码\n21            string base64 = getFileBase64(\"[本地图片文件]\");\n22            String str = \"image=\" + HttpUtility.UrlEncode(base64);\n23            byte[] buffer = encoding.GetBytes(str);\n24            request.ContentLength = buffer.Length;\n25            request.GetRequestStream().Write(buffer, 0, buffer.Length);\n26            HttpWebResponse response = (HttpWebResponse)request.GetResponse();\n27            StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.Default);\n28            string result = reader.ReadToEnd();\n29            Console.WriteLine(\"护照识别:\");\n30            Console.WriteLine(result);\n31            return result;\n32        }\n33\n34        public static String getFileBase64(String fileName) {\n35            FileStream filestream = new FileStream(fileName, FileMode.Open);\n36            byte[] arr = new byte[filestream.Length];\n37            filestream.Read(arr, 0, (int)filestream.Length);\n38            string baser64 = Convert.ToBase64String(arr);\n39            filestream.Close();\n40            return baser64;\n41        }\n42    }\n43}
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返回说明

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返回参数

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字段是否必选类型说明
log_id是uint64唯一的log id，用于问题定位
directionint32是图像方向。
- - 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是uint32识别结果数，表示words_result的元素个数
words_result是object识别结果
+ location是uint32水平坐标
++ top是uint32表示定位位置的长方形左上顶点的垂直坐标
++ left是uint32表示定位位置的长方形左上顶点的水平坐标
++ height是uint32表示定位位置的长方形的高度
++ width是uint32表示定位位置的长方形的宽度
+ words是string识别内容
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返回示例

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\n JSON\n \n
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1{\n2    \"log_id\": 7377468409496932872,\n3    \"direction\": 0,\n4    \"words_result_num\": 15,\n5    \"words_result\": {\n6       \"护照类型\": {\n7            \"location\": {\n8                \"width\": 59,\n9                \"top\": 200,\n10                \"left\": 762,\n11                \"height\": 26\n12            },\n13            \"words\": \"P\"\n14        },\n15       \"国家码\": {\n16            \"location\": {\n17                \"width\": 59,\n18                \"top\": 200,\n19                \"left\": 762,\n20                \"height\": 26\n21            },\n22            \"words\": \"CHN\"\n23        },\n24        \"护照签发地点\": {\n25            \"location\": {\n26                \"width\": 236,\n27                \"top\": 505,\n28                \"left\": 558,\n29                \"height\": 43\n30            },\n31            \"words\": \"山东/SHANDONG\"\n32        },\n33        \"MRZCode2\": {\n34            \"location\": {\n35                \"width\": 1252,\n36                \"top\": 797,\n37                \"left\": 145,\n38                \"height\": 88\n39            },\n40            \"words\": \"E898657303CHNSDMO7O2<<<<<<<<<<<<<\"\n41        },\n42        \"有效期至\": {\n43            \"location\": {\n44                \"width\": 287,\n45                \"top\": 528,\n46                \"left\": 955,\n47                \"height\": 46\n48            },\n49            \"words\": \"20261004\"\n50        },\n51        \"签发机关\": {\n52            \"location\": {\n53                \"width\": 271,\n54                \"top\": 583,\n55                \"left\": 552,\n56                \"height\": 42\n57            },\n58            \"words\": \"出入境管理局\"\n59        },\n60        \"MRZCode1\": {\n61            \"location\": {\n62                \"width\": 1201,\n63                \"top\": 781,\n64                \"left\": 162,\n65                \"height\": 45\n66            },\n67            \"words\": \"PONSUN<<JIAJIA<<<<<<<<<<<<<<<<<<<<<<<<<<\"\n68        },\n69        \"护照号码\": {\n70            \"location\": {\n71                \"width\": 237,\n72                \"top\": 215,\n73                \"left\": 994,\n74                \"height\": 48\n75            },\n76            \"words\": \"E89865730\"\n77        },\n78        \"签发日期\": {\n79            \"location\": {\n80                \"width\": 279,\n81                \"top\": 453,\n82                \"left\": 955,\n83                \"height\": 46\n84            },\n85            \"words\": \"20161005\"\n86        },\n87        \"出生地点\": {\n88            \"location\": {\n89                \"width\": 216,\n90                \"top\": 429,\n91                \"left\": 564,\n92                \"height\": 43\n93            },\n94            \"words\": \"山东/SHANDONG\"\n95        },\n96        \"姓名\": {\n97            \"location\": {\n98                \"width\": 159,\n99                \"top\": 247,\n100                \"left\": 581,\n101                \"height\": 34\n102            },\n103            \"words\": \"孙嘉佳\"\n104        },\n105        \"姓名拼音\": {\n106            \"location\": {\n107                \"width\": 229,\n108                \"top\": 279,\n109                \"left\": 578,\n110                \"height\": 41\n111            },\n112            \"words\": \"SUN,JIAJIA\"\n113        },\n114        \"国籍\": {\n115            \"location\": {\n116                \"width\": 209,\n117                \"top\": 366,\n118                \"left\": 695,\n119                \"height\": 42\n120            },\n121            \"words\": \"中国/CHINESE\"\n122        },\n123        \"生日\": {\n124            \"location\": {\n125                \"width\": 202,\n126                \"top\": 382,\n127                \"left\": 950,\n128                \"height\": 39\n129            },\n130            \"words\": \"19950723\"\n131        },\n132        \"性别\": {\n133            \"location\": {\n134                \"width\": 73,\n135                \"top\": 357,\n136                \"left\": 570,\n137                \"height\": 34\n138            },\n139            \"words\": \"男/M\"\n140        }\n141    }\n142}
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