AI训练营第二天——身份证识别系统

身份证识别系统

身份证识别系统（RecognizeIdentityCard）是阿里云视觉系统中提供的一个服务，通过扫描身份证照片来得到图片上的文本信息，并返回给用户。在互联网时代，这项服务无疑为个人信息识别提供了很大的方便。

示例

    "RequestId": "F60CC98C-B8E9-4288-839E-2C4A201FEEA4",
    "Data": {
        "FrontResult": {
            "Address": "杭州市西湖区万塘路黄龙时代广场",
            "FaceRectVertices": [
                {
                    "X": "338.63800048828125",
                    "Y": "190.12008666992188"
                },
                {
                    "X": "337.53411865234375",
                    "Y": "117.78894805908203"
                },
                {
                    "X": "403.37005615234375",
                    "Y": 116.7841796875
                },
                {
                    "X": "404.47393798828125",
                    "Y": "189.11532592773438"
                }
            ],
            "FaceRectangle": {
                "Center": {
                    "X": "371.0040283203125",
                    "Y": "153.45213317871094"
                },
                "Angle": "-0.8743622899055481",
                "Size": {
                    "Height": "72.339553833007812",
                    "Width": "65.843612670898438"
                }
            },
            "CardAreas": [
                {
                    "X": 62,
                    "Y": 64
                },
                {
                    "X": 456,
                    "Y": 60
                },
                {
                    "X": 459,
                    "Y": 281
                },
                {
                    "X": 65,
                    "Y": 286
                }
            ],
            "Gender": "女",
            "Nationality": "汉",
            "Name": "支小宝",
            "IDNumber": "330106200503287127",
            "BirthDate": "20050326"
        }
    }
}

那么，如何调用这个强大的api呢？

阿里云视觉开发中心

1、开通身份证识别
身份证识别首页
2、开通oss服务
对象存储服务（Object Storage Service，OSS）是一种海量、安全、低成本、高可靠的云存储服务，适合存放任意类型的文件。容量和处理能力弹性扩展，多种存储类型供选择，全面优化存储成本。
阿里云对象存储服务
3、使用python SDK 调用API

推荐使用python3.6版本

#!/usr/bin/env python
#coding=utf-8
import oss2
from aliyunsdkcore.client import AcsClient
from aliyunsdkcore.acs_exception.exceptions import ClientException
from aliyunsdkcore.acs_exception.exceptions import ServerException
from aliyunsdkocr.request.v20191230.RecognizeIdentityCardRequest import RecognizeIdentityCardRequest
import json

info = open('myinfo.json','r')
_json = json.load(info)
info.close()

auth = oss2.Auth(_json['accesskey'], _json['secret'])
bucket = oss2.Bucket(auth,'http://oss-cn-shanghai.aliyuncs.com','current-cloud-oss')
bucket.create_bucket(oss2.models.BUCKET_ACL_PRIVATE)


try:
    bucket.put_object_from_file('identCard/sfz.jpg', 'sfz.jpg')
except Exception as e:
    print(e)
    exit()


client = AcsClient(_json['accesskey'], _json['secret'], 'cn-shanghai')

request = RecognizeIdentityCardRequest()
request.set_accept_format('json')

request.set_ImageURL("https://bucket.oss-cn-shanghai.aliyuncs.com/identCard/sfz.jpg?Content-Typr=image/jpeg")
request.set_Side("face")

response = client.do_action_with_exception(request)

print(str(response, encoding='utf-8'))

通过对象存储sdk将图片上传到oss中，再通过调用身份证识别方法来获取信息，再辅以pyside，pyqt等GUI来实现窗口化交互。