身份证OCR识别，支持矫正及头像提取
接到客户需求，传入身份证的照片，要得到矫正后的证件照片以及证件上的头像。石榴智能的身份证ocr接口不仅提供文字识别功能，还能返回上面的信息。下面介绍如何调用该API。
1，获得appcode
在石榴智能API网站上注册可以得到appcode，在身份证ocr产品可以获得免费积分。
2，调用API
以下是python调用api并展示矫正的证件照片和头像的代码：
# API文档：https://market.shiliuai.com/doc/id-card-ocr # -*- coding: utf8 -*- import requests import base64 import json import numpy as np import cv2 URL = "https://ocr-api.shiliuai.com/api/id_card_ocr/v2" APPCODE = "你的appcode" HEADERS = { 'Authorization': 'APPCODE %s' % APPCODE, 'Content-Type': 'application/json' } def get_base64(file_path): with open(file_path, 'rb') as fp: b64 = base64.b64encode(fp.read()).decode('utf8') return b64 def post_api(data, name): print('test ' + name) response = requests.post(url=URL, headers=HEADERS, json=data) response = json.loads(response.content) for k in response.keys(): if k != 'data': print(k, response[k]) else: print(k) d = response['data'] for kk in d.keys(): if 'base64' in kk: print(' ', kk, d[kk][:100], '......') rectified_base64 = d.get(kk) file_bytes = base64.b64decode(rectified_base64) rectified = np.asarray(bytearray(file_bytes), dtype=np.uint8) rectified = cv2.imdecode(rectified, cv2.IMREAD_UNCHANGED) cv2.imshow(kk, rectified) else: print(' ', kk, d[kk]) cv2.waitKey(0) print('\n ') # 默认参数 def post_default(): f = "../data/1.jpg" b64 = get_base64(f) data = { "image_base64": b64 } post_api(data, 'default') # 返回矫正证件 def post_return_card(): f = "../data/1.jpg" b64 = get_base64(f) data = { "image_base64": b64, "return_rectified_card": True } post_api(data, 'rectify') # 设置矫正证件的边距 def post_return_card_margin(): f = "../data/1.jpg" b64 = get_base64(f) data = { "image_base64": b64, "return_rectified_card": True, "card_margin_ratio": 0.1 } post_api(data, 'rectify_margin') # 设置矫正证件的尺寸 def post_return_card_resize(): f = "../data/1.jpg" b64 = get_base64(f) data = { "image_base64": b64, "return_rectified_card": True, "card_width": 420, "card_height": 270 } post_api(data, 'rectify_resize') # 设置返回头像 def post_return_head(): f = "../data/1.jpg" b64 = get_base64(f) data = { "image_base64": b64, "return_rectified_head": True, "head_width": 358 } post_api(data, 'head') if __name__ == "__main__": post_default() post_return_card() post_return_card_margin() post_return_card_resize() post_return_head()