OpenCV: 密集透射變換

OpenCV: 密集透射變換

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

int main(int argc, char** argv)
{
CvPoint2D32f srcQuad[4], dstQuad[4];
CvMat* warp_matrix = cvCreateMat(3,3,CV_32FC1);
IplImage *src, *dst;
if( argc == 1 && ((src=cvLoadImage("lena.jpg",1)) != 0 ))
{
dst = cvCloneImage(src);
dst->origin = src->origin;
cvZero(dst);

srcQuad[0].x = 0; //src Top left
srcQuad[0].y = 0;
srcQuad[1].x = src->width - 1; //src Top right
srcQuad[1].y = 0;
srcQuad[2].x = 0; //src Bottom left
srcQuad[2].y = src->height - 1;
srcQuad[3].x = src->width - 1; //src Bot right
srcQuad[3].y = src->height - 1;
//- - - - - - - - - - - - - -//
dstQuad[0].x = src->width*0.05; //dst Top left
dstQuad[0].y = src->height*0.33;
dstQuad[1].x = src->width*0.9; //dst Top right
dstQuad[1].y = src->height*0.25;
dstQuad[2].x = src->width*0.2; //dst Bottom left
dstQuad[2].y = src->height*0.7;
dstQuad[3].x = src->width*0.8; //dst Bot right
dstQuad[3].y = src->height*0.9;

cvGetPerspectiveTransform(srcQuad,dstQuad,
warp_matrix);//由四對點計算透射變換

cvWarpPerspective(src,dst,warp_matrix);//對圖像進行透視變換

cvNamedWindow( "Perspective_Warp", 1 );
cvShowImage( "Perspective_Warp", dst );
cvWaitKey();
}
cvReleaseImage(&dst);
cvReleaseMat(&warp_matrix);
return 0;
}

運行結果

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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