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4 years ago
# Should import neccessary libraries at the beginning of the notebook

from __future__ import division
from __future__ import annotations
from abc import ABC, abstractmethod
from collections import Counter
from google.cloud import vision
import matplotlib.pyplot as plt

import pandas as pd
import numpy as np

import re
import cv2
import math
import time
import base64
import binascii
import pytesseract

The command pattern, that uses to implement multiple text extraction solutions, each solution is a Command class, the class must be extends from the ExtractCommand class and required to implement the extract method. The extract method should return a tuple, the first value in the tuple is the full text extracted, the second is the full extract data from the API that are using.

The abstract class, all command classes must be implement from this abstraction

class ExtractCommand(ABC):
    @abstractmethod
    def extract(self):
        pass

Google Vision API