example2_10.rar_avi 读写_视频灰度

#include "cv.h" #include "highgui.h" int main( int argc, char** argv ) { CvCapture* capture = 0; capture = cvCreateFileCapture("E://1.avi"); if( !capture ) return -1; IplImage* bgr_frame = cvQueryFrame( capture );//Init the video read double fps = cvGetCaptureProperty( capture, CV_CAP_PROP_FPS );//获取fps CvSize size = cvSize( (int)cvGetCaptureProperty( capture, CV_CAP_PROP_FRAME_WIDTH), (int)cvGetCaptureProperty( capture, CV_CAP_PROP_FRAME_HEIGHT) ); CvVideoWriter *writer = cvCreateVideoWriter( "E://2.avi", CV_FOURCC('X','V','I','D'), fps, size ); IplImage* logpolar_frame = cvCreateImage( size, IPL_DEPTH_8U, 1 ); while( (bgr_frame = cvQueryFrame(capture)) != NULL ) { // cvLogPolar( bgr_frame, // logpolar_frame, // cvPoint2D32f(bgr_frame->width/2, bgr_frame->height/2), // 40, // CV_INTER_LINEAR+CV_WARP_FILL_OUTLIERS // ); cvCvtColor( bgr_frame, logpolar_frame, CV_RGB2GRAY );//彩色转换为灰度图像 cvFlip( logpolar_frame, NULL, 0 );//翻转图像 cvWriteFrame( writer, logpolar_frame ); } cvReleaseVideoWriter( &writer ); cvReleaseImage( &logpolar_frame ); cvReleaseCapture( &capture ); return(0); }