用OpenCV調整視頻大小

用OpenCV調整視頻大小

// videoProcess.cpp : 定義控制台應用程序的入口點。
//

#include"stdafx.h" 
#include <stdio.h> 
#include <cv.h> 
#include <highgui.h> 

int main(int argc, char *argv[]) 
{ 
 CvCapture* capture = cvCaptureFromAVI("D:\\video\\sunglass\\day\\x12.avi"); 

 IplImage* frame = 0; 

 int isColor = 1;   
 int fps    = 25; // or 25
 CvVideoWriter *writer = cvCreateVideoWriter("D:\\video\\sunglass\\day\\xx12.avi",CV_FOURCC('X','V','I','D'),fps,cvSize(640,480),isColor);   

 cvNamedWindow( "vivi"); 
 //讀取和顯示 
 while(1) 
 { 
  frame = cvQueryFrame(capture); //獲取一幀圖片 
  if(frame == NULL) 
   break; 

  CvSize dstSize = cvSize(frame->width * 2, frame->height * 2);
  IplImage *dst = cvCreateImage(dstSize, frame->depth, frame->nChannels);

  cvResize( frame, dst, CV_INTER_LINEAR );
  cvShowImage( "vivi", dst ); //將其顯示 
  char key = cvWaitKey(10); 
 
  cvWriteFrame(writer, dst);
  frame = NULL;
  cvReleaseImage(&dst);
 } 

 cvReleaseVideoWriter(&writer);   
 cvDestroyWindow("vivi"); 

 return 0; 
} 

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Ubuntu Linux下安裝OpenCV2.4.1所需包 http://www.linuxidc.com/Linux/2012-08/68184.htm

Ubuntu 12.04 安裝 OpenCV2.4.2 http://www.linuxidc.com/Linux/2012-09/70158.htm

CentOS下OpenCV無法讀取視頻文件 http://www.linuxidc.com/Linux/2011-07/39295.htm

Ubuntu 12.04下安裝OpenCV 2.4.5總結 http://www.linuxidc.com/Linux/2013-06/86704.htm

Ubuntu 10.04中安裝OpenCv2.1九步曲 http://www.linuxidc.com/Linux/2010-09/28678.htm

基於QT和OpenCV的人臉識別系統 http://www.linuxidc.com/Linux/2011-11/47806.htm

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OpenCV的詳細介紹：請點這裡
OpenCV的下載地址：請點這裡