MFC通过opencv显示摄像头.docxVIP

/watkinsong/article/details/7360941在MFC中通过opencv显示摄像头视频或者文件视频 分类： /weixingstudio/article/category/1100536c++ 2012-03-16 14:56 15136人阅读 /watkinsong/article/details/7360941评论(75) javascript:void(0);收藏 /watkinsong/article/details/7360941举报 /tag/mfcmfc/tag/initializationinitialization/tag/wizardwizard/tag/applicationapplication/tag/nullnull/tag/systemsystem这里通过MFC显示摄像头视频，同样要用到CvvImage类，本人用的opencv2.3.1的版本，这里没有这个类，所以仍然需要手动加入这个类的头文件和代码文件。关于CvvImage类的说明请看：/weixingstudio/article/details/7357651/weixingstudio/article/details/7357651/weixingstudio/article/details/7357558/weixingstudio/article/details/7357558?然后就是搭建工程了。这里就不多说界面的设计了。我这里的界面如图所示，有一个开始打开摄像头的按钮，一个关闭摄像头的按钮。有一个PictureBox的控件。?为了能够在PictureBox里面显示图片，我们需要定义一些变量来获取PictureBox的句柄。在主窗口的cpp文件中，添加如下的全局变量：[cpp] /watkinsong/article/details/7360941view plain/watkinsong/article/details/7360941copy/watkinsong/article/details/7360941print/watkinsong/article/details/7360941?CvCapture*?capture;??CRect?rect;??CDC?*pDC;??HDC?hDC;??CWnd?*pwnd;???这里特别注意，这些变量一定要是全局变量。再来看一下这些变量的添加位置：[cpp] /watkinsong/article/details/7360941view plain/watkinsong/article/details/7360941copy/watkinsong/article/details/7360941print/watkinsong/article/details/7360941?#include?stdafx.h??#include?VideoMFC.h??#include?VideoMFCDlg.h??#include?afxdialogex.h???#ifdef?_DEBUG??#define?new?DEBUG_NEW??#endif????CvCapture*?capture;??CRect?rect;??CDC?*pDC;??HDC?hDC;??CWnd?*pwnd;???//?CAboutDlg?dialog?used?for?App?About???class?CAboutDlg?:?public?CDialogEx??{??public:???然后在窗口的初始化函数中进行句柄的初始化：[cpp] /watkinsong/article/details/7360941view plain/watkinsong/article/details/7360941copy/watkinsong/article/details/7360941print/watkinsong/article/details/7360941?OnInitDialog()???这个函数，BOOL CVideoMFCDlg::OnInitDialog()初始化代码：[cpp] /watkinsong/article/details/7360941view plain/watkinsong/article/details/7360941copy/watkinsong/article/details/7360941print/watkinsong/article/details/7360941?//?CVideoMFCDlg?message?handlers???BOOL?CVideoMFCDlg::OnInitDialog()??{???CDialogEx::OnInitDialog();?