required third-party lib : opencv-python pytesseract pillow google-api-core google-auth google-cloud google-cloud-vision googleapis-common-protos

required software : tesseract-ocr for windows

請自行申請google cloud帳號 並下載自己的keyfile.json 將keyfile.json的檔案路徑登入到環境變數的"系統變數"(GOOGLE_APPLICATION_CREDENTIALS)