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����ʱ��:2006-10-04 00:57:07��Դ:��������:����
1. ���Ȼ�ȡffmpeg����װ���OpenCV�򲻿��ܶ���Ƶ�ļ���ʽ��

�ܶ����Ҳ�����ô����,��ʵ֮ǰffmpeg����ͨ��cvs���أ�����������Ѿ������˸���ǿ���svn

���ʹ��SVN�����ﲻ�ٽ��ܣ����ϻ��д����İ�װ��ʹ�õ����¿��Խ������������м���SVN������������

SubVersion���� http://subversion.tigris.org/ ���أ�֧��linux�����������װ���

TortoiseSVN���� http://tortoisesvn.tigris.org/ ���أ��Ǻܲ�����SVN�ͻ��˳���Ϊwindows��dz��򼯳ɵ�windows��Դ���������ļ�����ϵͳ��Subversion�ͻ��ˣ��������ܷ��㣬commit������þ���Winrar�Ҽ�ѹ��һ�����㡣


ok����������װsubversion����ס���֮ǰװ��apr��apr-util����apache.org��վ���µ�

wget http://subversion.tigris.org/downloads/subversion-1.3.2.tar.gz
tar zvxf subversion-1.3.2.tar.gz
cd subversion-1.3.2
./configure --with-apr=/usr/local/apr-httpd --with-apr-util=/usr/local/apr-util-httpd/
make
make install


���ˣ����ǾͿ���ͨ��svn�����ȡ���µ�ffmpeg��

svn checkout svn://svn.mplayerhq.hu/ffmpeg/trunk ffmpeg

��ᷢ���������ڵ�Ŀ¼���Զ�����һ��ffmpeg��Ŀ¼�����������ص�Դ���롣

2.������ffmpeg�ı���

./configure --enable-libogg --enable-shared --enable-gpl

(һ��Ҫ���� --enable-shared,��ȻOpenCV�Ҳ���ffmpeg��)


================================================
2006-10-3
1.
���أ�opencv-0.9.9.tar.gz
http://puzzle.dl.sourceforge.net/sourceforge/opencvlibrary/opencv-0.9.9.tar.gz

2.
#tar -xzvf opencv-0.9.9.tar.gz

3.
#./configure --with-quicktime=no --with-ffmpeg

��OpenCVĬ����quicktime����Ƶ�ļ����Ұ����ij�ffmpeg)
4.
#make
5.
#make install

6.
�������

�޸�/etc/ld.so.conf

����һ��/usr/local/lib

# ldconfig (root�û�)

Ȼ��/usr/local/lib/pkgconfig�е�opencv.pc ������/usr/lib/pkgconfig��,(��������ⲽ,�������벻��)

���Բ����������

# cp /usr/local/lib/pkgconfig/opencv.pc /usr/lib/pkgconfig

7.
�༭opencv����ķ���

�Ա༭cvtest.c�ļ�Ϊ����(��Ϊhighgui�в�����c++,����һ��Ҫ��g++����ſ���)

A. g++ `pkg-config --cflags opencv` -o cvtest cvtest.c `pkg-config --libs opencv`

B. ����: g++ `pkg-config --cflags opencv` -c cvtest.c

����: g++ `pkg-config --libs opencv` -o cvtest cvtest.o

=====================================================
2006-10-3
���ӣ�

/**************************************************
* ������ģ���˶�������
*
**************************************************/

/***********************************************************************
* OpenCV example
* Copyright (C) 2006 Shiqi Yu
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
***********************************************************************/

#include

#include
#include
#include

int main( int argc, char** argv )
{
//����IplImageָ��
IplImage* pFrame = NULL;
IplImage* pFrImg = NULL;
IplImage* pBkImg = NULL;

CvMat* pFrameMat = NULL;
CvMat* pFrMat = NULL;
CvMat* pBkMat = NULL;

CvCapture* pCapture = NULL;

int nFrmNum = 0;

//��������
cvNamedWindow("video", 1);
cvNamedWindow("background",1);
cvNamedWindow("foreground",1);
//ʹ������������
cvMoveWindow("video", 30, 0);
cvMoveWindow("background", 360, 0);
cvMoveWindow("foreground", 690, 0);



if( argc != 2 )
{
fprintf(stderr, "Usage: bkgrd \n");
return -1;
}

//����Ƶ�ļ�
if( !(pCapture = cvCreateFileCapture(argv[1])))
{
fprintf(stderr, "Can not open video file %s\n", argv[1]);
return -2;
}

//��֡��ȡ��Ƶ
while(pFrame = cvQueryFrame( pCapture ))
{
nFrmNum++;

//����ǵ�һ֡����Ҫ�����ڴ棬����ʼ��
if(nFrmNum == 1)
{
pBkImg = cvCreateImage(cvSize(pFrame->width, pFrame->height), IPL_DEPTH_8U,1);
pFrImg = cvCreateImage(cvSize(pFrame->width, pFrame->height), IPL_DEPTH_8U,1);

pBkMat = cvCreateMat(pFrame->height, pFrame->width, CV_32FC1);
pFrMat = cvCreateMat(pFrame->height, pFrame->width, CV_32FC1);
pFrameMat = cvCreateMat(pFrame->height, pFrame->width, CV_32FC1);

//ת���ɵ�ͨ��ͼ���ٴ���
cvCvtColor(pFrame, pBkImg, CV_BGR2GRAY);
cvCvtColor(pFrame, pFrImg, CV_BGR2GRAY);

cvConvert(pFrImg, pFrameMat);
cvConvert(pFrImg, pFrMat);
cvConvert(pFrImg, pBkMat);
}
else
{
cvCvtColor(pFrame, pFrImg, CV_BGR2GRAY);
cvConvert(pFrImg, pFrameMat);
//��˹�˲��ȣ���ƽ��ͼ��
//cvSmooth(pFrameMat, pFrameMat, CV_GAUSSIAN, 3, 0, 0);

//��ǰ֡������ͼ���
cvAbsDiff(pFrameMat, pBkMat, pFrMat);

//��ֵ��ǰ��ͼ
cvThreshold(pFrMat, pFrImg, 60, 255.0, CV_THRESH_BINARY);

//������̬ѧ�˲���ȥ������
//cvErode(pFrImg, pFrImg, 0, 1);
//cvDilate(pFrImg, pFrImg, 0, 1);

//���±���
cvRunningAvg(pFrameMat, pBkMat, 0.003, 0);
//������ת��Ϊͼ���ʽ��������ʾ
cvConvert(pBkMat, pBkImg);

//��ʾͼ��
cvShowImage("video", pFrame);
cvShowImage("background", pBkImg);
cvShowImage("foreground", pFrImg);

//����а����¼���������ѭ��
//�˵ȴ�ҲΪcvShowImage�����ṩʱ�������ʾ
//�ȴ�ʱ����Ը���CPU�ٶȵ���
if( cvWaitKey(2) >= 0 )
break;


}

}




//���ٴ���
cvDestroyWindow("video");
cvDestroyWindow("background");
cvDestroyWindow("foreground");

//�ͷ�ͼ��;���
cvReleaseImage(&pFrImg);
cvReleaseImage(&pBkImg);

cvReleaseMat(&pFrameMat);
cvReleaseMat(&pFrMat);
cvReleaseMat(&pBkMat);

return 0;
}
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