pip install minio

from minio import Minio
from minio.error import S3Error
import cv2


def upload_image_minio(image, image_name):
    """
    讀取本地圖像并上傳到MinIO

    參數(shù):
    - image: OpenCV圖像對(duì)象
    - image_name: 存儲(chǔ)在MinIO中的對(duì)象名稱

    返回:
    - 圖像在MinIO中的訪問URL
    """
    try:
        # 判斷圖像是否存在
        if image is None:
            raise ValueError(f"無法讀取圖像")

        # 將圖像編碼為JPEG格式
        is_success, buffer = cv2.imencode(".jpg", image)
        if not is_success:
            raise RuntimeError("無法將圖像編碼為JPEG格式")

        # 創(chuàng)建字節(jié)流
        io_buf = io.BytesIO(buffer)

        # 檢查存儲(chǔ)桶是否存在，不存在則創(chuàng)建
        found = minio_client.bucket_exists(BUCKET_NAME)
        if not found:
            minio_client.make_bucket(BUCKET_NAME)
            print(f"創(chuàng)建存儲(chǔ)桶: {BUCKET_NAME}")
        else:
            print(f"存儲(chǔ)桶已存在: {BUCKET_NAME}")

        # 上傳圖像到MinIO
        minio_client.put_object(
            BUCKET_NAME,
            image_name,
            data=io_buf,
            length=io_buf.getbuffer().nbytes,
            content_type="image/jpeg"
        )

        # 生成圖像訪問URL
        image_url = f"http://{MINIO_ENDPOINT}/{BUCKET_NAME}/{image_name}"
        print(f"圖像已成功上傳至: {image_url}")

        return image_url

    except S3Error as e:
        print(f"MinIO錯(cuò)誤: {e}")
        return None
    except Exception as e:
        print(f"上傳圖像發(fā)生錯(cuò)誤: {e}")
        return None


if __name__ == '__main__':
    # minio配置參數(shù)
    MINIO_ENDPOINT = "192.1.35.10:9000"  # MinIO服務(wù)端點(diǎn)
    ACCESS_KEY = "xxxxxxx"  # MinIO訪問密鑰
    SECRET_KEY = "xxxxxxx"  # MinIO密鑰
    BUCKET_NAME = "pic-fgd"  # 存儲(chǔ)桶名稱
    USE_SECURE = False  # 已修改為False，使用HTTP協(xié)議而非HTTPS
    # 初始化MinIO客戶端
    minio_client = Minio(MINIO_ENDPOINT, access_key=ACCESS_KEY, secret_key=SECRET_KEY, secure=USE_SECURE)

    # 讀取本地圖像 
    image = cv2.imread("C:/Code/yolov5-3.1/fg_dataset/廢鋼分類/image/dcd1-20250924035523-dcd.jpg")
    
    # 上傳圖像
    image_detect_url = upload_image_minio(image, "test.jpg")