Python+OpenCV实现火焰检测

import cv2
import threading
import playsound
import smtplib

# 加载训练好的 XML 文件
fire_cascade = cv2.CascadeClassifier('fire_detection_cascade_model.xml')

# 初始化摄像头
vid = cv2.VideoCapture(0)  # 使用笔记本内置摄像头，索引为 0
runOnce = False  # 创建布尔变量

# 定义播放警报声音的函数
def play_alarm_sound_function():
    playsound.playsound('fire_alarm.mp3', True)
    print("Fire alarm end")

# 定义发送邮件的函数
def send_mail_function():
    recipientmail = "add recipients mail"
    recipientmail = recipientmail.lower()

    try:
        server = smtplib.SMTP('smtp.gmail.com', 587)
        server.ehlo()
        server.starttls()
        server.login("add senders mail", 'add senders password')
        server.sendmail('add senders mail', recipientmail, "Warning: Fire accident has been reported")
        print("Alert mail sent successfully to {}".format(recipientmail))
        server.close()
    except Exception as e:
        print(e)

while True:
    Alarm_Status = False
    ret, frame = vid.read()

    if not ret:
        print("Failed to grab frame")
        break

    gray = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)
    fire = fire_cascade.detectMultiScale(gray, 1.2, 5)

    # 增加调试输出
    print(f"Detected fire regions: {len(fire)}")

    # 绘制火焰矩形框
    for (x, y, w, h) in fire:
        cv2.rectangle(frame, (x-20, y-20), (x+w+20, y+h+20), (0, 255, 0), 2)
        roi_gray = gray[y:y+h, x:x+w]
        roi_color = frame[y:y+h, x:x+w]

        print("Fire alarm initiated")
        threading.Thread(target=play_alarm_sound_function).start()

        if not runOnce:
            print("Mail send initiated")
            threading.Thread(target=send_mail_function).start()
            runOnce = True
        else:
            print("Mail is already sent once")

    cv2.imshow('frame', frame)

    if cv2.waitKey(1) & 0xFF == ord('q'):
        break

# 释放资源
vid.release()
cv2.destroyAllWindows()