在这一代拍照app中我们新增了以下内容：
1.左上角增加了"天眼"两个标识字体；
2.新增曝光功能；
3.新增去噪点功能；
4.优化了菜单及功能说明；
下面是代码：

import cv2
import os
import numpy as np
from PIL import Image, ImageDraw, ImageFont
import datetime
import webbrowser
import logging
import threading

# 配置日志
logging.basicConfig(level=logging.INFO, format='%(asctime)s - %(levelname)s - %(message)s')

# 检查并创建保存照片和视频的文件夹
def create_folder(folder_name):
    if not os.path.exists(folder_name):
        os.makedirs(folder_name)
    return folder_name

# 获取文件夹中的最大编号
def get_next_file_number(folder_name, file_extension):
    files = os.listdir(folder_name)
    files = [f for f in files if f.endswith(file_extension)]
    if files:
        numbers = [int(f.split('.')[0]) for f in files]
        return max(numbers) + 1
    else:
        return 1

# 将PIL图像转换为OpenCV图像
def pil_to_cv(image):
    return cv2.cvtColor(np.array(image), cv2.COLOR_RGB2BGR)

# 自动曝光调整
def auto_exposure(frame, exposure_value):
    frame = cv2.convertScaleAbs(frame, alpha=exposure_value, beta=0)
    return frame

# 自动对焦
def auto_focus(frame):
    gray = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)
    laplacian = cv2.Laplacian(gray, cv2.CV_64F).var()
    if laplacian < 100:  # 如果图像模糊，进行对焦
        frame = cv2.fastNlMeansDenoisingColored(frame, None, 10, 10, 7, 21)
    return frame

# 鼠标回调函数
def mouse_callback(event, x, y, flags, param):
    global next_photo_number, next_video_number, running, recording, out, frame, scale_factor, cam_index, roi, button_hints, show_buttons, show_help

    button_width = int(frame_width * 0.05)  # 按钮区域宽度占界面宽度的1/20
    button_height = 40  # 每个按钮的高度

    if event == cv2.EVENT_LBUTTONDOWN:
        if 10 <= x <= button_width and 10 <= y <= 50:  # 关闭按钮区域
            running = False
        elif 10 <= x <= button_width and 70 <= y <= 70 + button_height:  # 拍照按钮区域
            threading.Thread(target=save_photo, args=(frame, next_photo_number)).start()
            next_photo_number += 1
        elif 10 <= x <= button_width and 120 <= y <= 120 + button_height:  # 开始/停止录像按钮区域
            if not recording:
                start_recording()
            else:
                stop_recording()
        elif 10 <= x <= button_width and 170 <= y <= 170 + button_height:  # 放大按钮区域
            scale_factor = min(3.0, scale_factor * 2)
        elif 10 <= x <= button_width and 220 <= y <= 220 + button_height:  # 缩小按钮区域
            scale_factor = max(1.0, scale_factor / 2)
        elif 10 <= x <= button_width and 270 <= y <= 270 + button_height:  # 切换摄像头按钮区域
            switch_camera()
        elif 10 <= x <= button_width and 320 <= y <= 320 + button_height:  # 查看照片按钮区域
            open_photo_folder()
        elif 10 <= x <= button_width and 370 <= y <= 370 + button_height:  # 查看视频按钮区域
            open_video_folder()
        elif 10 <= x <= button_width and 420 <= y <= 420 + button_height:  # 去除噪点按钮区域
            apply_denoise()
        elif 10 <= x <= button_width and 470 <= y <= 470 + button_height:  # 功能菜单按钮区域
            show_buttons = not show_buttons
        elif 10 <= x <= button_width and 520 <= y <= 520 + button_height:  # 功能说明按钮区域
            show_help = not show_help
    elif event == cv2.EVENT_RBUTTONDOWN:
        roi[0], roi[1] = x, y
    elif event