使用3种设计模式：工厂模式，组合模式，策略模式，实现图像的切换。-The use of three kinds of design patterns: Factory pattern, combined model, strategy pattern, to achieve the image switching.

在算法设计中实用Strategy模式，实用Controller实现模块间通信，实用Singleton设计模式，实用模型-视图-控制器架构设计应用程序，程序内容是颜色空间转换-colorDetection.h colorDetection.cpp colordetector.cpp correspond to Recipe: Using the Strategy Pattern in Algorithm Design