OpenCV记录.docVIP

一、openCV常用例子 1、每次都要配置 每创建一个将要使用OpenCV的VC Project，都需要给它指定需要的lib。菜单：Project-Settings，然后将Setting for选为All Configurations，然后选择右边的link标签，在Object/library modules附加上 cxcore.lib cv.lib ml.lib cvaux.lib highgui.lib cvcam.lib 关于路径 E:\网络图片\美女图片\90后MM3.jpg 应写为：E:\\网络图片\\美女图片\\90后MM\\3.jpg 2、打开图片： #include stdafx.h #include highgui.h int main( int argc, char** argv ) { IplImage* img = cvLoadImage( F:\\图片\\90后MM\\3.jpg,-1 ); cvNamedWindow( Example1,CV_WINDOW_AUTOSIZE ); cvShowImage( Example1, img ); cvWaitKey(0); cvReleaseImage( img ); cvDestroyWindow( Example1 ); } 3、打开视频： #include stdafx.h #include highgui.h int main( int argc, char** argv ) { cvNamedWindow( Example2, CV_WINDOW_AUTOSIZE ); CvCapture* capture = cvCreateFileCapture( b.avi ); IplImage* frame; while(1) { frame = cvQueryFrame( capture ); if( !frame ) break; cvShowImage( Example2, frame ); cvWaitKey(33); } cvReleaseCapture( capture ); cvDestroyWindow( Example2 ); } 4、添加视频滚动条： #include stdafx.h #include cv.h #include highgui.h int g_slider_position= 0; CvCapture* g_capture= NULL; void onTrackbarSlide(int pos) { cvSetCaptureProperty(g_capture,CV_CAP_PROP_POS_FRAMES,pos); } int main( int argc, char** argv ) { cvNamedWindow( Example3, CV_WINDOW_AUTOSIZE ); g_capture = cvCreateFileCapture(b.avi); int frames = (int) cvGetCaptureProperty(g_capture,CV_CAP_PROP_FRAME_COUNT); if( frames!= 0 ) { cvCreateTrackbar(Position,Example3, g_slider_position,frames,onTrackbarSlide); } IplImage* frame; // While loop (as in Example 2) capture show video // Release memory and destroy window while(1) { frame = cvQueryFrame( g_capture ); if( !frame ) break; cvShowImage( Example3, frame ); cvWaitKey(33); } cvReleaseCapture( g_capture ); cvDestroyWindow( Example3 ); return(0); } 5、在MFC中播放视频： void TestVideoDlg::DrawPicToHDC(IplImage *img, UINT ID) { CDC *pDC