initialize

.gitignore

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+./data/

Dockerfile

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+FROM python:3.9
+
+WORKDIR /code
+
+COPY ./requirements.txt /code/requirements.txt
+
+RUN pip install --no-cache-dir --upgrade -r /code/requirements.txt
+
+COPY . .
+
+CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "7860"]

main.py

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+import cv2
+import numpy as np
+from pyzbar.pyzbar import decode
+from fastapi import FastAPI, File, UploadFile
+from typing import List
+import shutil
+from logging import getLogger, StreamHandler, DEBUG
+logger = getLogger(__name__)
+handler = StreamHandler(); handler.setLevel(DEBUG)
+logger.setLevel(DEBUG)
+logger.addHandler(handler)
+logger.propagate = False
+
+    
+def qrdec_zbar(image_path):
+    # load image
+    image = cv2.imread(image_path)
+
+    # QRコードをデコードする
+    dec_infos = decode(image)
+
+    result_data = ""
+    readable = False
+    if dec_infos:
+        for dec_info in dec_infos:
+            if not dec_info =="":
+                result_data = dec_info.data.decode("utf-8")
+                readable = True
+                break
+    else:
+        pass
+
+    return {"data": result_data, "readable": readable}
+
+
+# -----------------------------------------------------------
+# initial
+# -----------------------------------------------------------
+font = cv2.FONT_HERSHEY_SIMPLEX
+
+
+# -----------------------------------------------------------
+# function_qr_dec
+# -----------------------------------------------------------
+def qrdec_cv2(img_bgr):
+
+    # QRCodeDetectorインスタンス生成
+    qrd = cv2.QRCodeDetector()
+
+    # QRコードデコード
+    retval, dec_infos, _, _ = qrd.detectAndDecodeMulti(img_bgr)
+
+    result_data = ""
+    readable = False
+
+    if retval:
+        for dec_info in dec_infos:
+            if not dec_info=="":
+                result_data = dec_info
+                readable = True
+                break
+    else:
+        pass
+    return {"data": result_data, "readable": readable}
+
+
+
+
+
+
+# -----------------------------------------------------------
+# sample program
+# -----------------------------------------------------------
+def qrdec(file_path):
+    img_BGR = cv2.imread(file_path, cv2.IMREAD_COLOR)
+    cv2_result = qrdec_cv2(img_BGR)
+    zbar_result = qrdec_zbar(file_path)
+        
+    is_safe_to_read = cv2_result["readable"] and zbar_result["readable"]
+    readable = cv2_result["readable"] or zbar_result["readable"]
+
+    decoded = ""
+    if cv2_result["readable"]:
+        decoded = cv2_result["data"]
+    elif zbar_result["readable"]:
+        decoded = zbar_result["data"]
+
+    return {"is_safe_to_read": is_safe_to_read, "readable": readable, "decoded": decoded}
+
+
+app = FastAPI()
+
+
+@app.post("/")
+async def upload_image(image: UploadFile = File(...)):
+    # 画像ファイルの内容を保存または処理する
+    with open(image.filename, "wb") as buffer:
+        shutil.copyfileobj(image.file, buffer)
+    result = qrdec(image.filename)
+    logger.info(f"response : {result}")
+    return result

requirements.txt

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+annotated-types==0.6.0
+anyio==3.7.1
+certifi==2023.11.17
+charset-normalizer==3.3.2
+click==8.1.7
+exceptiongroup==1.2.0
+fastapi==0.104.1
+h11==0.14.0
+idna==3.6
+numpy==1.26.2
+opencv-python-headless==4.8.1.78
+pydantic==2.5.2
+pydantic_core==2.14.5
+python-multipart==0.0.6
+pyzbar==0.1.9
+requests==2.31.0
+sniffio==1.3.0
+starlette==0.27.0
+typing_extensions==4.9.0
+urllib3==2.1.0
+uvicorn==0.24.0.post1

test.py

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+import requests
+
+url = 'http://127.0.0.1:8000/'
+files = {'image': open('./data/catch_copy_.png', 'rb')}
+
+response = requests.post(url, files=files)
+print(response.text)