aaa.rar_cvGetWindowHandle

/* 程序名称：laplace.c 功能：从摄像头或者AVI文件中得到视频流，对视频流进行边缘检测，并输出结果。 */ #include "cv.h" #include "highgui.h" #include <ctype.h> #include <stdio.h> void saveVideo(); CvCapture* capture = 0; IplImage* img=0; int main( int argc, char** argv ) { IplImage* laplace = 0; IplImage* colorlaplace = 0; IplImage* planes[3] = { 0, 0, 0 }; // 多个图像面 // 下面的语句说明在命令行执行程序时，如果指定AVI文件，那么处理从 // AVI文件读取的视频流，如果不指定输入变量，那么处理从摄像头获取 // 的视频流 if( argc == 1 || (argc == 2 && strlen(argv[1]) == 1 && isdigit(argv[1][0]))) capture = cvCaptureFromCAM( argc == 2 ? argv[1][0] - '0' : 0 ); else if( argc == 2 ) capture = cvCaptureFromAVI( argv[1] ); if( !capture ) { fprintf(stderr,"Could not initialize capturing...\n"); return -1; } cvNamedWindow( "Laplacian", 0 ); // 循环捕捉，直到用户按键跳出循环体 for(;;) { IplImage* frame = 0; int i; frame = cvQueryFrame( capture ); if( !frame ) break; if( !laplace ) { for( i = 0; i < 3; i++ ) planes[i] = cvCreateImage( cvSize(frame->width,frame->height), 8, 1 ); laplace = cvCreateImage( cvSize(frame->width,frame->height), IPL_DEPTH_16S, 1 ); colorlaplace = cvCreateImage( cvSize(frame->width,frame->height), 8, 3 ); } cvCvtPixToPlane( frame, planes[0], planes[1], planes[2], 0 ); for( i = 0; i < 3; i++ ) { cvLaplace( planes[i], laplace, 3 ); // 3: aperture_size cvConvertScaleAbs( laplace, planes[i], 1, 0 ); // planes[] = ABS(laplace) } cvCvtPlaneToPix( planes[0], planes[1], planes[2], 0, colorlaplace ); colorlaplace->origin = frame->origin; saveVideo(); cvShowImage("Laplacian", colorlaplace ); if( cvWaitKey(10) >= 0 ) break; } cvReleaseCapture( &capture ); cvDestroyWindow("Laplacian"); return 0; } void saveVideo() { CvVideoWriter *writer=0; int isColor=1;//,i; int fps=26; int frameW=640; int frameH=480; // int nFrames=50; writer=cvCreateVideoWriter("out.avi",CV_FOURCC('P','I','M','I'), fps,cvSize(frameW,frameH),isColor); // for(i=0;i<nFrames;i++){ cvGrabFrame(capture); img=cvRetrieveFrame(capture); cvWriteFrame(writer,img); // } }