《学习opencv》笔记——矩阵和图像操作——cvSum,cvSVD,cvSVBkSb,cvTrace,cvTranspose,cvXor,cvXorS and cvZero

CvScalar cvSum(//计算arr各通道所有像素总和
CvArr* arr//目标矩阵
);

#include <cv.h>
#include <highgui.h>
#include <stdio.h>
#include <iostream>
using namespace std;

int main()
{

IplImage *src1,*dst1,*dst2,*dst3,*dst4;
src1=cvLoadImage("3.jpg",1);

CvScalar cs = cvSum(src1);

cout << "通道一总和：";
cout << cs.val[0] << endl;
cout << "通道二总和：";
cout << cs.val[1] << endl;
cout << "通道三总和：";
cout << cs.val[2] << endl;
cout << "通道四总和：";
cout << cs.val[3] << endl;

getchar();
return 0;
}

void cvSVD(//计算 A = U*W*(V的转置)
CvArr* A,
CvArr* W,
CvArr* U = NULL,
CvArr* V = NULL,
int flags = 0//标记位
);

#include <cv.h>
#include <highgui.h>
#include <stdio.h>
#include <iostream>
using namespace std;
int main()
{

double a[5][5] =
{
{7,2,4,5,6},
{3,4,5,8,2},
{1,0,9,7,5},
{0,5,3,2,1},
{4,6,7,3,1}
};

CvMat va = cvMat(5,5, CV_64FC1,a);

cout<<"目标矩阵："<<endl;

for(int i=0;i<5;i++)
{
for(int j=0;j<5;j++)
printf("%f\t",cvmGet(&va,i,j));
cout << endl;
}

double b[5][5] = {0};

CvMat vb = cvMat(5,5, CV_64FC1,b);

double c[5][5] = {0};

CvMat vc = cvMat(5,5, CV_64FC1,c);

double d[5][5] = {0};

CvMat vd = cvMat(5,5, CV_64FC1,d);

cvSVD(&va,&vb,&vc,&vd);

cout<<"结果矩阵vb："<<endl;

for(int i=0;i<5;i++)
{
for(int j=0;j<5;j++)
printf("%f\t",cvmGet(&vb,i,j));
cout << endl;
}

cout<<"结果矩阵vc："<<endl;

for(int i=0;i<5;i++)
{
for(int j=0;j<5;j++)
printf("%f\t",cvmGet(&vc,i,j));
cout << endl;
}

cout<<"结果矩阵vd："<<endl;

for(int i=0;i<5;i++)
{
for(int j=0;j<5;j++)
printf("%f\t",cvmGet(&vd,i,j));
cout << endl;
}

getchar();
return 0;

}

void cvSVBKSb(//计算X=V*(W伴随)*(T转置)*B
const CvArr* W,
const CvArr* U,
const CvArr* V,
const CvArr* B,
CvArr* X,
int flage = 0//标记位
);

#include <cv.h>
#include <highgui.h>
#include <stdio.h>
#include <iostream>
using namespace std;
int main()
{

double a[5][5] =
{
{7,2,4,5,6},
{3,4,5,8,2},
{1,0,9,7,5},
{0,5,3,2,1},
{4,6,7,3,1}
};

CvMat va = cvMat(5,5, CV_64FC1,a);

double b[5][5] = {0};

CvMat vb = cvMat(5,5, CV_64FC1,b);

double c[5][5] = {0};

CvMat vc = cvMat(5,5, CV_64FC1,c);

double d[5][5] = {0};

CvMat vd = cvMat(5,5, CV_64FC1,d);

cvSVD(&va,&vb,&vc,&vd);

cvSVBkSb(&vb,&vc,&vd,NULL,&va,0);

cout<<"结果矩阵："<<endl;

for(int i=0;i<5;i++)
{
for(int j=0;j<5;j++)
printf("%f\t",cvmGet(&va,i,j));
cout << endl;
}

getchar();
return 0;

}

CvScalar cvTrace(//求矩阵的迹
const CvArr* mat//目标矩阵
);

#include <cv.h>
#include <highgui.h>
#include <stdio.h>
#include <iostream>
using namespace std;
int main()
{

double a[5][5] =
{
{7,2,4,5,6},
{3,4,5,8,2},
{1,0,9,7,5},
{0,5,3,2,1},
{4,6,7,3,1}
};

CvMat va = cvMat(5,5, CV_64FC1,a);

cout<<"目标矩阵："<<endl;

for(int i=0;i<5;i++)
{
for(int j=0;j<5;j++)
printf("%f\t",cvmGet(&va,i,j));
cout << endl;
}

CvScalar cs = cvTrace(&va);

cout << " 矩阵的迹为：";
cout << cs.val[0] << endl;

getchar();
return 0;

}

void cvTranspose(//矩阵转置
const CvArr* src,//目标矩阵
CvArr* dst//结果矩阵
);

#include <cv.h>
#include <highgui.h>
#include <stdio.h>
#include <iostream>
using namespace std;
int main()
{

double a[5][5] =
{
{7,2,4,5,6},
{3,4,5,8,2},
{1,0,9,7,5},
{0,5,3,2,1},
{4,6,7,3,1}
};

CvMat va = cvMat(5,5, CV_64FC1,a);

double b[5][5] = {0};

CvMat vb = cvMat(5,5, CV_64FC1,b);

cout<<"目标矩阵："<<endl;

for(int i=0;i<5;i++)
{
for(int j=0;j<5;j++)
printf("%f\t",cvmGet(&va,i,j));
cout << endl;
}

cvTranspose(&va,&vb);

cout<<"结果矩阵："<<endl;

for(int i=0;i<5;i++)
{
for(int j=0;j<5;j++)
printf("%f\t",cvmGet(&vb,i,j));
cout << endl;
}

getchar();
return 0;

}

void cvXor(//矩阵进行异或操作
const CvArr* src1,//矩阵1
const CvArr* src2,//矩阵2
CvArr* dst,//结果矩阵
const CvArr* mask = NULL//矩阵“开关”
);

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

int main(int argc, char** argv)
{
IplImage *src1, *src2,*src3;
src1 = cvLoadImage("1.jpg");
src2 = cvLoadImage("11.jpg");
src3 = cvLoadImage("7.jpg");

cvXor(src1,src2,src3);

cvShowImage( "测试1", src1);
cvShowImage( "测试2", src2);
cvShowImage( "测试3", src3);
cvWaitKey();
return 0;
}

void cvXor(//矩阵与给定值进行异或操作
const CvArr* src1,//矩阵1
CvScalar value//给定值
CvArr* dst,//结果矩阵
const CvArr* mask = NULL//矩阵“开关”
);

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

int main(int argc, char** argv)
{
IplImage *src1, *src2;
src1 = cvLoadImage("1.jpg");
src2 = cvLoadImage("7.jpg");

CvScalar cs;
cs.val[0] = 100;
cs.val[1] = 100;
cs.val[2] = 255;
cs.val[3] = 0;

cvXorS(src1,cs,src2);

cvShowImage( "测试1", src1);
cvShowImage( "测试2", src2);
cvWaitKey();
return 0;
}

void cvZero(//将图像所有通道设置为零
CvArr* arr//目标图像
);

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

int main(int argc, char** argv)
{
IplImage *src1, *src2;
src1 = cvLoadImage("1.jpg");
src2 = cvLoadImage("1.jpg");

cvZero(src1);

cvShowImage( "结果图", src1);
cvShowImage( "原图", src2);
cvWaitKey();
return 0;
}