使用Python Flask的OpenCV如何读取文件夹中的图像并将其流式传输到网站？

from flask import Flask, Response
import cv2
import os

app = Flask(__name__)

def generate_frames():
    folder_path = 'path/to/folder'  # 替换为实际的文件夹路径
    for filename in os.listdir(folder_path):
        if filename.endswith('.jpg') or filename.endswith('.png'):  # 只处理图像文件
            image_path = os.path.join(folder_path, filename)
            frame = cv2.imread(image_path)
            if frame is not None:
                ret, buffer = cv2.imencode('.jpg', frame)
                frame = buffer.tobytes()
                yield (b'--frame\r\n'
                       b'Content-Type: image/jpeg\r\n\r\n' + frame + b'\r\n')

@app.route('/video_feed')
def video_feed():
    return Response(generate_frames(),
                    mimetype='multipart/x-mixed-replace; boundary=frame')

if __name__ == '__main__':
    app.run()