42 lines
1.4 KiB
Python
42 lines
1.4 KiB
Python
import base64
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import io
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from tempfile import NamedTemporaryFile
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from PIL import Image, ImageEnhance
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import pytesseract
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from passporteye import read_mrz
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import json
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def process_passport(passport_b64: str) -> str:
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"""
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Traite le passport :
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- Décodage de l'image en base64.
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- Application de l'OCR pour extraire le texte.
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:param passport_b64: Chaîne base64 représentant l'image du passport.
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:return: Texte extrait de l'image.
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"""
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image_bytes = base64.b64decode(passport_b64)
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with NamedTemporaryFile(mode="wb") as tmp_img:
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tmp_img.write(image_bytes)
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with open(tmp_img.name, "rb") as read_img:
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mrz_obj = read_mrz(read_img)
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image = Image.open(io.BytesIO(image_bytes))
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enhancer = ImageEnhance.Contrast(image)
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image = enhancer.enhance(2.0) # 2.0 = double le contraste (1.0 = inchangé)
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tesseract_text = pytesseract.image_to_string(image, lang='eng')
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out_dict = {}
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if not mrz_obj is None:
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number_raw = str(mrz_obj.number)
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# It's not called a 'Hack'athon for nothing...
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number = number_raw.replace("B", "8")
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out_dict = {
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"country": mrz_obj.country,
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"names": mrz_obj.names,
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"number": number,
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"surname": mrz_obj.surname,
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"mrz": mrz_obj.aux["text"],
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}
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out_dict["raw"] = tesseract_text
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out = json.dumps(out_dict)
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return out |