代码

测试相机

    # -*- coding: utf-8 -*-
    import cv2
    
    cap = cv2.VideoCapture(0)
    #fourcc = cv2.VideoWriter_fourcc(*'MJPG')  # 使用MJPG编码器
    #out = cv2.VideoWriter('output.avi',fourcc,20.0,(1920,1080))
    while (cap.isOpened()):
        ret,frame = cap.read()
        #frame1 = cv2.flip(frame,0) # 垂直翻转
        if ret == True:
            gray = cv2.cvtColor(frame,cv2.COLOR_BGR2GRAY) # 从帧图像 frame1 中截取灰度图并赋值给 gray
            #out.write(frame)#保存彩色视图
            cv2.imshow('color',frame)#显示彩色视图
            cv2.imshow('gray',gray)#显示彩色视图
            if cv2.waitKey(1)&0xFF == ord('q'):
                break
        else:
            break
    cap.release()
    cv2.destroyAllWindows()'


## 使用方法

### **mosquitto.sh**

```shell
./mosquitto.sh

thread_main.py

python3 thread_main.py

运行即可调起thread_mos.py和thread1.py

thread_mos.py

注意修改参数配置

thread1.py

桩模块

pi.py

python3 pi.py

注意修改参数配置

mosquitto_recognize.log

保存识别日志