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import cv2
import numpy as np

# 加载预训练模型
net = cv2.dnn.readNetFromCaffe('deploy.prototxt', 'res10_300x300_ssd_iter_140000.caffemodel')

def detect_product(image_path):
    image = cv2.imread(image_path)
    (h, w) = image.shape[:2]
    blob = cv2.dnn.blobFromImage(cv2.resize(image, (300, 300)), 1.0, (300, 300), (104.0, 177.0, 123.0))
    net.setInput(blob)
    detections = net.forward()

    for i in range(0, detections.shape[2]):
        confidence = detections[0, 0, i, 2]
        if confidence > 0.5:
            box = detections[0, 0, i, 3:7] * np.array([w, h, w, h])
            (startX, startY, endX, endY) = box.astype("int")
            cv2.rectangle(image, (startX, startY), (endX, endY), (0, 255, 0), 2)
    
    cv2.imshow("Product Detection", image)
    cv2.waitKey(0)

detect_product('path_to_your_image.jpg')