opencv\modules\core\include\opencv2\core\version.hpp
修改：
#define CV_MAJOR_VERSION 2
#define CV_MINOR_VERSION 4
#define CV_SUBMINOR_VERSION 0
opencv配置：
opencv\cmake目录下
opencv\modules\core\include\opencv2\core\version.hpp
修改：
#define CV_MAJOR_VERSION 2
#define CV_MINOR_VERSION 4
#define CV_SUBMINOR_VERSION 0
opencv配置：
opencv\cmake目录下