帧差法——动态检测——统计车流量完整代码及视频，工程配置opencv后可直接添加源代码运行。能大致统计出车流量。

支持动态检测屏幕亮度的功能源码，源码ASCScreenBrightnessDetector，可以动态检测屏幕亮度，提供delegate函数来即时响应屏幕亮度的变化。喜欢的朋友可以下载研究一下吧，ios源码频道提供下载。 ASCScreenBrightnessDetector ASCScreenBrightnessDetector lets you easily detect screen brightness changes and provides some useful delegate methods. For Example it is very easy to switch between a day and night theme optimized for different lighting conditions: 使用方法： 检测当前屏幕亮度： ASCScreenBrightnessDetector *brightnessDetector = [ASCScreenBrightnessDetector new]; NSLog(@"Screen brightness: %f", brightnessDetector.screenBrightness); ASCScreenBrightnessStyle style = brightnessDetector.screenBrightnessStyle; switch (style) { case ASCScreenBrightnessStyleDark: // Do something, e.g. set a dark theme. break; case ASCScreenBrightnessStyleLight: // Do something else, e.g set a light theme. break; } 响应屏幕亮度变化的delegate函数： - (void)screenBrightnessDidChange:(CGFloat)brightness { NSLog(@"The new brightness is: %f", brightness); } - (void)screenBrightnessStyleDidChange:(ASCScreenBrightnessStyle)style { NSLog(@"The new style is: %u", style); }

移动物体摄像头实时动态检测python

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