Python借助于AI來實作驗證碼識別，內含python3示例

借助于AI工具來實作驗證碼識別，內含python3示例
驗證碼識別的場景十分常見
本文主要討論作為普通開發者（缺乏/沒有Ai學術（教育/實踐）背景）的前提下，來低成本快速實作驗證碼識別

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本次測驗的驗證碼主要有兩種
1. 無干擾的純數字驗證碼

2. 有干擾的數字加字母驗證碼

1. 百度AI大腦

https://ai.baidu.com/tech/ocr/general

下邊我用python3來示例在

https://console.bce.baidu.com/ai/?fromai=1#/ai/ocr/app/list

這里新建應用

記錄appid, apikey, secret key

 復制代碼 隱藏代碼
import requests 
import base64
import shortuuid
from pprint import pprint

#填上自己的app 資訊
appid = ""
key = ""
secret = ""

def Token():
    host = 'https://aip.baidubce.com/oauth/2.0/token?grant_type=client_credentials&client_id={}&client_secret={}'.format(key, secret)
    response = requests.get(host)
    # if response:
        # pprint(response.json())
    return response.json()['access_token']

token =  Token()

request_url = "https://aip.baidubce.com/rest/2.0/ocr/v1/general_basic"
f = open('./code/code.png', 'rb')
img = base64.b64encode(f.read())
params = {"image":img,"language_type":"CHN_ENG"}
# access_token = '[呼叫鑒權介面獲取的token]'
request_url = request_url + "?access_token=" + token
headers = {'content-type': 'application/x-www-form-urlencoded'}
response = requests.post(request_url, data=https://www.cnblogs.com/pythonQqun200160592/p/params, headers=headers)
pprint (response.json())

2 騰訊AI

https://ai.qq.com/product/ocr.shtml#common

騰訊ocr示例在這里新建應用

https://ai.qq.com/console/application/create-app

記錄以上app資訊 APP_ID，APP_Key

 復制代碼 隱藏代碼
import base64, hashlib, json, random, string, time
from urllib import parse
import requests
from pprint import pprint

# 填寫app資訊
app_id = ""
app_key = ""

def GetAccessToken(formdata, app_key):
    dic = sorted(formdata.items(), key=lambda d: d[0])
    sign = parse.urlencode(dic) + '&app_key=' + app_key
    m = hashlib.md5()
    m.update(sign.encode('utf8'))
    return m.hexdigest().upper()

def RecogniseGeneral(app_id, time_stamp, nonce_str, image, app_key):
    host = 'https://api.ai.qq.com/fcgi-bin/ocr/ocr_generalocr'
    formdata = {'app_id': app_id, 'time_stamp': time_stamp, 'nonce_str': nonce_str, 'image': image}
    app_key = app_key
    sign = GetAccessToken(formdata=https://www.cnblogs.com/pythonQqun200160592/p/formdata, app_key=app_key)
    formdata['sign'] = sign
    try:
        r = requests.post(url=host, data=https://www.cnblogs.com/pythonQqun200160592/p/formdata, timeout=20)
    except requests.exceptions.ReadTimeout:
        r = requests.post(url=host, data=https://www.cnblogs.com/pythonQqun200160592/p/formdata, timeout=20)
    if (r.status_code == 200):
        return r.json()
    else:
        print(r.text)

def Recognise(img_path):
    with open(file=img_path, mode='rb') as file:
        base64_data = base64.b64encode(file.read())
    nonce = ''.join(random.sample(string.digits + string.ascii_letters, 32))
    stamp = int(time.time())
    recognise = RecogniseGeneral(app_id=app_id, time_stamp=stamp, nonce_str=nonce, image=base64_data,
                                 app_key=app_key) 
    # for k, v in recognise.items():
    #     print(k, v)
    return recognise

img_path = "./code/code.png"
response = Recognise(img_path)
pprint(response)
code = response['data']['item_list'][0]['itemstring'].replace(" ", "")

print(code)

標籤：Python

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