使用python flask显示opencv图像

from flask import Flask, render_template, Response
import cv2

app = Flask(__name__)

def process_image():
    # 读取图像
    image = cv2.imread('path_to_image')
    
    # 在图像上进行处理，例如边缘检测、人脸识别等
    processed_image = cv2.Canny(image, 100, 200)
    
    # 将处理后的图像转换为JPEG格式
    ret, jpeg = cv2.imencode('.jpg', processed_image)
    
    # 返回JPEG图像数据
    return jpeg.tobytes()

@app.route('/')
def index():
    return Response(process_image(), mimetype='image/jpeg')

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