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该接口已停止更新且即将下线，为避免影响您目前的业务使用，请您使用智能财务票据识别，此服务支持财务场景中13种常见票据的分类及结构化识别，包括增值税发票、卷票、机打发票、定额发票、火车票（含电子发票铁路电子客票）、出租车票、网约车行程单、飞机行程单（含电子发票航空电子客票行程单）、汽车票、过路过桥费、船票、机动车/二手车销售发票（含电子发票机动车/二手车销售统一发票）。支持多张不同种类票据在同一张图片上的混贴场景，可返回每张票据的位置、种类及票面信息的结构化识别结果。

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接口描述

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支持对全国范围不同版式过路、过桥费发票的发票代码、发票号码、入口、出口、日期、时间、金额、省、市9个字段进行结构化识别。

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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/toll_invoice

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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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参数是否必须类型可选值范围说明
image和 url/pdf_file/ofd_file 四选一string-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
优先级：image > url > pdf_file > ofd_file ，当image字段存在时，url、pdf_file、ofd_file 字段失效
url和 image/pdf_file/ofd_file 四选一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
优先级：image > url > pdf_file > ofd_file，当image字段存在时，url字段失效
请注意关闭URL防盗链
pdf_file和 image/url/ofd_file 四选一string-PDF文件，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
优先级：image > url > pdf_file > ofd_file，当image、url字段存在时，pdf_file字段失效
pdf_file_num否string-需要识别的PDF文件的对应页码，当 pdf_file 参数有效时，识别传入页码的对应页面内容，若不传入，则默认识别第 1 页
ofd_file和 image/url/pdf_file 四选一string-OFD文件，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
优先级：image > url > pdf_file > ofd_file，当image、url、pdf_file字段存在时，ofd_file字段失效
ofd_file_num否string-需要识别的OFD文件的对应页码，当 ofd_file 参数有效时，识别传入页码的对应页面内容，若不传入，则默认识别第 1 页
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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/toll_invoice?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过路过桥费发票识别\n8'''\n9\n10request_url = \"https://aip.baidubce.com/rest/2.0/ocr/v1/toll_invoice\"\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* 过路过桥费发票识别\n11*/\n12public class TollInvoice {\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 tollInvoice() {\n24        // 请求url\n25        String url = \"https://aip.baidubce.com/rest/2.0/ocr/v1/toll_invoice\";\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        TollInvoice.tollInvoice();\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/toll_invoice\";\n7static std::string tollInvoice_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    tollInvoice_result = std::string((char *) ptr, size * nmemb);\n16    return size * nmemb;\n17}\n18/**\n19* 过路过桥费发票识别\n20* @return 调用成功返回0，发生错误返回其他错误码\n21*/\n22int tollInvoice(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 = tollInvoice_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/toll_invoice?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 TollInvoice\n10    {\n11        // 过路过桥费发票识别\n12        public static string tollInvoice()\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/toll_invoice?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(\"过路过桥费发票识别:\");\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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参数是否必须类型说明
log_id是uint64唯一的log id，用于问题定位
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
+ InvoiceCode是string发票代码
+ InvoiceNum是string发票号码
+ Entrance是string入口
+ Exit是string出口
+ Date是string日期
+ Time是string时间
+ Fare是string金额
+ Province是string省
+ City是string市
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返回示例

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1    \"words_result\": {\n2        \"Entrance\": \"保定北\",\n3        \"Time\": \"13:24\",\n4        \"InvoiceCode\": \"237001473201\",\n5        \"Date\": \"2020-02-18\",\n6        \"Exit\": \"邯郸\",\n7        \"Fare\": \"110.00\",\n8        \"InvoiceNum\": \"95876669\"\n9        \"City\": \"保定\",\n10        \"Province\": \"河北\"\n11    },\n12    \"log_id\": \"1274932270494384128\",\n13    \"words_result_num\": 7\n14}
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