二手车销售发票识别
更新时间:2025-01-23
接口描述
支持对二手车销售发票的25个关键字段进行结构化识别,包括发票代码、发票号码、开票日期、买方、卖方、车牌号、车辆类型、二手车市场等。
注:暂不支持数电二手车销售发票。
在线调试
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。
请求说明
请求示例
HTTP 方法:POST
请求URL: https://aip.baidubce.com/rest/2.0/ocr/v1/used_vehicle_invoice
URL参数:
参数 | 值 |
---|---|
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 | 值 |
---|---|
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 | 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8M,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8M,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 |
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。
1curl -i -k 'https://aip.baidubce.com/rest/2.0/ocr/v1/used_vehicle_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'
1# encoding:utf-8
2
3import requests
4import base64
5
6'''
7二手车销售发票识别
8'''
9
10request_url = "https://aip.baidubce.com/rest/2.0/ocr/v1/used_vehicle_invoice"
11# 二进制方式打开图片文件
12f = open('[本地文件]', 'rb')
13img = base64.b64encode(f.read())
14
15params = {"image":img}
16access_token = '[调用鉴权接口获取的token]'
17request_url = request_url + "?access_token=" + access_token
18headers = {'content-type': 'application/x-www-form-urlencoded'}
19response = requests.post(request_url, data=params, headers=headers)
20if response:
21 print (response.json())
1package com.baidu.ai.aip;
2
3import com.baidu.ai.aip.utils.Base64Util;
4import com.baidu.ai.aip.utils.FileUtil;
5import com.baidu.ai.aip.utils.HttpUtil;
6
7import java.net.URLEncoder;
8
9/**
10* 二手车销售发票识别
11*/
12public class UsedVehicleInvoice {
13
14 /**
15 * 重要提示代码中所需工具类
16 * FileUtil,Base64Util,HttpUtil,GsonUtils请从
17 * https://ai.baidu.com/file/658A35ABAB2D404FBF903F64D47C1F72
18 * https://ai.baidu.com/file/C8D81F3301E24D2892968F09AE1AD6E2
19 * https://ai.baidu.com/file/544D677F5D4E4F17B4122FBD60DB82B3
20 * https://ai.baidu.com/file/470B3ACCA3FE43788B5A963BF0B625F3
21 * 下载
22 */
23 public static String usedvehicleInvoice() {
24 // 请求url
25 String url = "https://aip.baidubce.com/rest/2.0/ocr/v1/used_vehicle_invoice";
26 try {
27 // 本地文件路径
28 String filePath = "[本地文件路径]";
29 byte[] imgData = FileUtil.readFileByBytes(filePath);
30 String imgStr = Base64Util.encode(imgData);
31 String imgParam = URLEncoder.encode(imgStr, "UTF-8");
32
33 String param = "image=" + imgParam;
34
35 // 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。
36 String accessToken = "[调用鉴权接口获取的token]";
37
38 String result = HttpUtil.post(url, accessToken, param);
39 System.out.println(result);
40 return result;
41 } catch (Exception e) {
42 e.printStackTrace();
43 }
44 return null;
45 }
46
47 public static void main(String[] args) {
48 UsedVehicleInvoice.usedvehicleInvoice();
49 }
50}
1#include <iostream>
2#include <curl/curl.h>
3
4// libcurl库下载链接:https://curl.haxx.se/download.html
5// jsoncpp库下载链接:https://github.com/open-source-parsers/jsoncpp/
6const static std::string request_url = "https://aip.baidubce.com/rest/2.0/ocr/v1/used_vehicle_invoice";
7static std::string usedvehicleInvoice_result;
8/**
9* 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
10* @param 参数定义见libcurl文档
11* @return 返回值定义见libcurl文档
12*/
13static size_t callback(void *ptr, size_t size, size_t nmemb, void *stream) {
14 // 获取到的body存放在ptr中,先将其转换为string格式
15 usedvehicleInvoice_result = std::string((char *) ptr, size * nmemb);
16 return size * nmemb;
17}
18/**
19* 二手车销售发票识别
20* @return 调用成功返回0,发生错误返回其他错误码
21*/
22int usedvehicleInvoice(std::string &json_result, const std::string &access_token) {
23 std::string url = request_url + "?access_token=" + access_token;
24 CURL *curl = NULL;
25 CURLcode result_code;
26 int is_success;
27 curl = curl_easy_init();
28 if (curl) {
29 curl_easy_setopt(curl, CURLOPT_URL, url.data());
30 curl_easy_setopt(curl, CURLOPT_POST, 1);
31 curl_httppost *post = NULL;
32 curl_httppost *last = NULL;
33 curl_formadd(&post, &last, CURLFORM_COPYNAME, "image", CURLFORM_COPYCONTENTS, "【base64_img】", CURLFORM_END);
34
35 curl_easy_setopt(curl, CURLOPT_HTTPPOST, post);
36 curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, callback);
37 result_code = curl_easy_perform(curl);
38 if (result_code != CURLE_OK) {
39 fprintf(stderr, "curl_easy_perform() failed: %s\n",
40 curl_easy_strerror(result_code));
41 is_success = 1;
42 return is_success;
43 }
44 json_result = usedvehicleInvoice_result;
45 curl_easy_cleanup(curl);
46 is_success = 0;
47 } else {
48 fprintf(stderr, "curl_easy_init() failed.");
49 is_success = 1;
50 }
51 return is_success;
52}
1<?php
2/**
3* 发起http post请求(REST API), 并获取REST请求的结果
4* @param string $url
5* @param string $param
6* @return - http response body if succeeds, else false.
7*/
8function request_post($url = '', $param = '')
9{
10 if (empty($url) || empty($param)) {
11 return false;
12 }
13
14 $postUrl = $url;
15 $curlPost = $param;
16 // 初始化curl
17 $curl = curl_init();
18 curl_setopt($curl, CURLOPT_URL, $postUrl);
19 curl_setopt($curl, CURLOPT_HEADER, 0);
20 // 要求结果为字符串且输出到屏幕上
21 curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
22 curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
23 // post提交方式
24 curl_setopt($curl, CURLOPT_POST, 1);
25 curl_setopt($curl, CURLOPT_POSTFIELDS, $curlPost);
26 // 运行curl
27 $data = curl_exec($curl);
28 curl_close($curl);
29
30 return $data;
31}
32
33$token = '[调用鉴权接口获取的token]';
34$url = 'https://aip.baidubce.com/rest/2.0/ocr/v1/used_vehicle_invoice?access_token=' . $token;
35$img = file_get_contents('[本地文件路径]');
36$img = base64_encode($img);
37$bodys = array(
38 'image' => $img
39);
40$res = request_post($url, $bodys);
41
42var_dump($res);
1using System;
2using System.IO;
3using System.Net;
4using System.Text;
5using System.Web;
6
7namespace com.baidu.ai
8{
9 public class UsedVehicleInvoice
10 {
11 // 二手车销售发票识别
12 public static string usedvehicleInvoice()
13 {
14 string token = "[调用鉴权接口获取的token]";
15 string host = "https://aip.baidubce.com/rest/2.0/ocr/v1/used_vehicle_invoice?access_token=" + token;
16 Encoding encoding = Encoding.Default;
17 HttpWebRequest request = (HttpWebRequest)WebRequest.Create(host);
18 request.Method = "post";
19 request.KeepAlive = true;
20 // 图片的base64编码
21 string base64 = getFileBase64("[本地图片文件]");
22 String str = "image=" + HttpUtility.UrlEncode(base64);
23 byte[] buffer = encoding.GetBytes(str);
24 request.ContentLength = buffer.Length;
25 request.GetRequestStream().Write(buffer, 0, buffer.Length);
26 HttpWebResponse response = (HttpWebResponse)request.GetResponse();
27 StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.Default);
28 string result = reader.ReadToEnd();
29 Console.WriteLine("二手车销售发票识别:");
30 Console.WriteLine(result);
31 return result;
32 }
33
34 public static String getFileBase64(String fileName) {
35 FileStream filestream = new FileStream(fileName, FileMode.Open);
36 byte[] arr = new byte[filestream.Length];
37 filestream.Read(arr, 0, (int)filestream.Length);
38 string baser64 = Convert.ToBase64String(arr);
39 filestream.Close();
40 return baser64;
41 }
42 }
43}
返回说明
返回参数
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 |
direction | 是 | int32 | 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 |
word_result | 是 | object | 识别结果数组 |
+ InvoiceCode | 是 | object | 发票代码 |
+ InvoiceNum | 是 | object | 发票号码 |
+ InvoiceDate | 是 | object | 开票日期 |
+ TaxCode | 是 | object | 税控码 |
+ Purchaser | 是 | object | 买方 |
+ PurchaserCode | 是 | object | 买方身份证号 |
+ PurchaserAddress | 是 | object | 买方地址 |
+ PurchaserPhone | 是 | object | 买方电话 |
+ Saler | 是 | object | 卖方 |
+ SalerCode | 是 | object | 卖方身份证号 |
+ SalerAddress | 是 | object | 卖方地址 |
+ SalerPhone | 是 | object | 卖方电话 |
+ LicensePlateNum | 是 | object | 车牌号 |
+ RegistrationCode | 是 | object | 登记证号 |
+ VehicleType | 是 | object | 车辆类型 |
+ VinNum | 是 | object | 车架号 |
+ ManuModel | 是 | object | 厂牌型号 |
+ TransferVehicleManagementOffice | 是 | object | 转入地车管所名称 |
+ TotalCarPrice | 是 | object | 车价合计大写 |
+ TotalCarPriceLow | 是 | object | 车价合计小写 |
+ UsedCarMarket | 是 | object | 二手车市场 |
+ TaxNum | 是 | object | 纳税人识别号 |
+ TaxAddress | 是 | object | 纳税人地址 |
+ TaxPhone | 是 | object | 纳税人电话 |
+ SheetNum | 是 | object | 联次 |
返回示例
JSON
1{
2 "word_result": {
3 "TransferVehicleManagementOffice": {
4 "word": "车管所"
5 },
6 "ManuModel": {
7 "word": "森林人JF1SH999"
8 },
9 "RegistrationCode": {
10 "word": "320008998998"
11 },
12 "TotalCarPriceLow": {
13 "word": "¥88000.00"
14 },
15 "TaxAddress": {
16 "word": "苏州高新区"
17 },
18 "PurchaserCode": {
19 "word": "313502198402043055"
20 },
21 "Saler": {
22 "word": "春春"
23 },
24 "TaxCode": {
25 "word": "74881478982966442866"
26 },
27 "Purchaser": {
28 "word": "丽丽"
29 },
30 "InvoiceCode": {
31 "word": "022001900539"
32 },
33 "InvoiceDate": {
34 "word": "2020-05-13"
35 },
36 "SalerAddress": {
37 "word": "江苏省苏州市工业园区"
38 },
39 "SalerCode": {
40 "word": "4124524199001156900"
41 },
42 "TaxPhone": {
43 "word": "12282680332"
44 },
45 "TaxNum": {
46 "word": "91330505MW1NCQUQWE"
47 },
48 "PurchaserPhone": {
49 "word": "0"
50 },
51 "VehicleType": {
52 "word": "小型越野客车"
53 },
54 "LicensePlateNum": {
55 "word": "苏U1A555"
56 },
57 "SheetNum": {
58 "word": "二"
59 },
60 "VinNum": {
61 "word": "JJ1SH95F4AG098838"
62 },
63 "TotalCarPrice": {
64 "word": "捌万捌仟圆整"
65 },
66 "PurchaserAddress": {
67 "word": "江苏省苏州市"
68 },
69 "SalerPhone": {
70 "word": "0"
71 },
72 "UsedCarMarket": {
73 "word": "苏州二手车电子商务有限公司"
74 },
75 "InvoiceNum": {
76 "word": "00354542"
77 }
78 },
79 "log_id": 1384799789308182528,
80 "direction": "0"
81}