opencv获取图像像素值

opencv获取图像像素值,学习opencv如何读图片并显示出来，获取像素值

/***********************************************************************
2.
* OpenCV example
3.
* By Shiqi Yu 2006
4.
***********************************************************************/



#include “cv.h“
#include “highgui.h“
#include “stdio.h“

int main（int argc char* argv[]）
{ 
	
    IplImage *img=cvLoadImage（“Lena.jpg“1）;
    IplImage *img_temp=cvCreateImage（cvSize（img->widthimg->height） IPL_DEPTH_8U 3）;
    CvScalar s;
    for（int i=0;iheight;i++）
	{
        for（int j=0;jwidth;j++）
		{
			s=cvGet2D（imgij）; // get the （ij） pixel value
			//printf（“B=%f G=%f R=%f “s.val[0]s.val[1]s.val[2]）;
			//s.val[0]=111;
			//s.val[1]=111;
			//s.val[2]=111;
			cvSet2D（img_tempijs）;//set the （ij） pixel value
        }
    }
    cvNamedWindow（“Image“1）; 
	
    cvShowImage（“Image“img_temp）;
    cvWaitKey（0）; //等待按键 
	
    cvDestroyWindow（ “Image“ ）;//销毁窗口
    cvReleaseImage（ &img ）; //释放图像 
	
    return 0;
} 

 属性            大小     日期    时间   名称
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     文件       4303  2008-03-26 14:37  opencv获取图像像素值\ImgReadAndShowTest.dsp

     文件        559  2008-03-26 14:22  opencv获取图像像素值\ImgReadAndShowTest.dsw

     文件   17599488  2011-05-14 21:57  opencv获取图像像素值\ImgReadAndShowTest.ncb

     文件      48640  2011-04-07 21:43  opencv获取图像像素值\ImgReadAndShowTest.opt

     文件       1418  2011-04-07 21:42  opencv获取图像像素值\ImgReadAndShowTest.plg

     文件        901  2011-05-14 21:34  opencv获取图像像素值\ImgReadAndShowTest.sln

    ..A..H.      8192  2011-05-14 21:57  opencv获取图像像素值\ImgReadAndShowTest.suo

     文件       5514  2011-05-14 21:43  opencv获取图像像素值\ImgReadAndShowTest.vcproj

     文件       1427  2011-05-14 21:57  opencv获取图像像素值\ImgReadAndShowTest.vcproj.PC-20100109WRNT.Administrator.user

     文件       1005  2011-04-07 21:42  opencv获取图像像素值\imgTest.cpp

     文件      91814  2008-03-26 14:18  opencv获取图像像素值\Lena.jpg

     文件       5366  2011-05-14 21:43  opencv获取图像像素值\Debug\BuildLog.htm

     文件    4967424  2011-05-14 21:34  opencv获取图像像素值\Debug\ImgReadAndShowTest.bsc

     文件     335872  2011-05-14 21:43  opencv获取图像像素值\Debug\ImgReadAndShowTest.exe

     文件        406  2011-05-14 21:34  opencv获取图像像素值\Debug\ImgReadAndShowTest.exe.embed.manifest

     文件        472  2011-05-14 21:34  opencv获取图像像素值\Debug\ImgReadAndShowTest.exe.embed.manifest.res

     文件        381  2011-05-14 21:43  opencv获取图像像素值\Debug\ImgReadAndShowTest.exe.intermediate.manifest

     文件     190208  2011-05-14 21:43  opencv获取图像像素值\Debug\ImgReadAndShowTest.ilk

     文件    2190336  2011-05-14 21:43  opencv获取图像像素值\Debug\ImgReadAndShowTest.pdb

     文件      68576  2011-05-14 21:34  opencv获取图像像素值\Debug\imgTest.obj

     文件          0  2011-05-14 21:34  opencv获取图像像素值\Debug\imgTest.sbr

     文件         67  2011-05-14 21:43  opencv获取图像像素值\Debug\mt.dep

     文件     279552  2011-04-07 21:42  opencv获取图像像素值\Debug\vc60.idb

     文件      94208  2011-04-07 21:42  opencv获取图像像素值\Debug\vc60.pdb

     文件     568320  2011-05-14 21:34  opencv获取图像像素值\Debug\vc90.idb

     文件     487424  2011-05-14 21:34  opencv获取图像像素值\Debug\vc90.pdb

     目录          0  2012-09-07 23:08  opencv获取图像像素值\Debug

     目录          0  2012-09-07 23:08  opencv获取图像像素值

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