一、说明：

百度云提供了名片识别的api，每天可以免费调用500次：https://cloud.baidu.com/product/ocr/cards

因此，需要先上百度云注册一个开发者应用

二、名片识别代码

baiduocr.js

const request = require('request-promise');

// 上百度云注册开发者应用

const BDOCRCONF = {

grant_type: 'xxxxxxxxxxx',

client_id: 'xxxxxxxxxxx',

client_secret: 'xxxxxxxxxxx',

}

/**

* 从百度提供的api获取access_token

*/

async function getBdOCRToken() {

let client_id = BDOCRCONF.client_id;

let client_secret = BDOCRCONF.client_secret;

let url = `https://aip.baidubce.com/oauth/2.0/token?grant_type=${BDOCRCONF.grant_type}&client_id=${client_id}&client_secret=${client_secret}`;

var options = {

method: 'get',

url: url

};

let result = await request(options);

return JSON.parse(result)['access_token'];

}

/**

* 名片识别

*/

async function scanCard(imgData, access_token) {

let url = `https://aip.baidubce.com/rest/2.0/ocr/v1/business_card?access_token=${access_token}`;

var options = {

method: 'POST',

uri: url,

headers: {

'content-type': 'application/x-www-form-urlencoded;',

},

form: {

image: imgData

}

};

let resultStr = await request(options);

return resultStr;

}

exports.getBdOCRToken = getBdOCRToken;

exports.scanCard = scanCard;

三、使用方法

const baiduocr = require('./baiduocr');

const fs = require('fs');

async function getImgData() {

const imgContent = fs.readFileSync('./1.jpg');

const imgContentBase64 = Buffer.from(imgContent, 'binary').toString('base64');

const imgData = encodeURI(imgContentBase64);

return imgData;

}

async function startScanCard() {

const imgData = await getImgData();

const baiduocr_access_token = await baiduocr.getBdOCRToken();

const resultStr = await baiduocr.scanCard(imgData, baiduocr_access_token);

console.log(resultStr);

}

startScanCard();